1964 Penny Value (2026 Guide): Errors List, “D” & No Mint Mark Worth

The 1964 penny is one of the most fascinating coins in American history — not because it is rare, but because of the staggering range of what one can be worth. Nearly 6.5 billion were minted, yet a single specimen with the right combination of grade, color, and variety recently sold for $19,200 at Heritage Auctions in 2025.

Whether you just found one in your change jar or you are hunting a high-grade registry coin, this guide will walk you through every variety, every certified population figure, and every key error you need to know about.

 

1964 Penny Value By Variety

The following table displays current market values for 1964 pennies across various mint marks and preservation levels, with pricing spanning from copper melt value for circulated pieces to exceptional SMS specimens worth thousands.

If you know the grade of your coin, you can find the exact price below in the Value Guides section.

Also Read: Top 100 Most Valuable Modern Pennies Worth Money (1959 – Present)

 

Top 10 Most Valuable 1964 Penny Worth Money

These results reveal a stunning value hierarchy. The 1964 SMS Special Strike completely dominates the premium tier — an SP67 RD example achieved a record-breaking $19,200 at Heritage Auctions in 2025, while an SP65 RD realized $11,400.

The PCGS Price Guide values an SP68 RD at an eye-watering $75,000, making these experimental prototypes among the rarest coins of the entire modern Lincoln cent era. A standard 1964 Red MS67 achieved $7,931.25 at Heritage Auctions, confirming that even billion-mintage coins deliver serious collector premiums when copper brilliance is perfectly preserved.

The 1964-D achieved its auction record of $4,025 at Stack’s Bowers for an MS67 specimen, while the proof series peaked at $2,585 for a perfect PR70 RD in January 2017. The copper color hierarchy — Red (RD) over Red-Brown (RB) over Brown (BN) — drives price differences of 10-to-1 or more, reflecting how extraordinarily difficult it is to maintain original copper luster across more than six decades.

Also Read: Lincoln Wheat Penny Value (1909-1958)

 

History of the 1964 Penny

The 1964 Lincoln penny was born during one of the most turbulent chapters in American monetary history. By 1963, a nationwide coin shortage had reached crisis levels — rising silver prices had caused widespread hoarding of 90% silver dimes, quarters, and half dollars, and the U.S. Mint was unable to keep pace with commercial demand despite running its presses around the clock.

Mint Director Eva Adams publicly blamed collectors for the shortage, pointing to the one million proof and mint sets purchased in 1964 alone as evidence of hoarding. In response, she removed mint marks from all 1964-dated coins except Denver pennies to discourage collectors from saving coins by facility of origin.

Congress authorized a “date freeze” in September 1964. Under this authority, and later reinforced by the Coinage Act of 1965 signed by President Lyndon B. Johnson on July 23, 1965, the U.S. Mint continued striking coins dated 1964 well into 1965 and, in some cases, 1966. This date freeze is the primary reason why combined mintage for 1964 cents reached nearly 6.45 billion pieces — a figure that would never be surpassed.

Philadelphia struck approximately 2.5 billion pennies, San Francisco contributed around 196 million (all without mint marks, indistinguishable from Philadelphia coins), and Denver produced a record-shattering 3.8 billion — making the 1964-D the single most prolific Lincoln cent in history.

The 1964 Lincoln cent features Victor David Brenner’s iconic Lincoln portrait on the obverse, introduced in 1909 to mark the president’s 100th birthday, and Frank Gasparro’s Lincoln Memorial reverse design, adopted in 1959. The coin also represents the final year of the traditional 95% copper composition for pennies that survived entirely unchanged from 1962 until the zinc-core conversion of 1982.

Behind the scenes, Mint Director Eva Adams was already experimenting with a new kind of collector product to replace the discontinued proof sets. A tiny number of experimental 1964-dated prototype sets were struck — coins that would not surface publicly until her estate was auctioned in 1991, revealing what we now know as the legendary 1964 SMS Special Strike pennies.

Also Read: Top 100 Rarest Pennies Worth Money (1787 – Present)

 

Is Your 1964 Penny Rare?

Use our CoinValueChecker App to instantly assess the specific rarity ranking of any 1964 penny variety in your collection for accurate market positioning.

 

Key Features of the 1964 Penny

The 1964 penny showcases the classic Lincoln cent design that has defined American one-cent coins for over a century. Understanding exactly what you are looking at helps you grade your coin more accurately — and that directly affects what it is worth.

The Obverse Of The 1964 Penny

The front (or “heads” side) carries Victor David Brenner’s portrait of President Lincoln, a design that has appeared on every penny since 1909. “In God We Trust” is inscribed above the portrait, “Liberty” appears to the left, and the date sits to the right.

Denver-minted coins carry a small “D” mint mark just below the date — this is the only mint mark on any U.S. coin dated 1964. Philadelphia and San Francisco coins have no mint mark, making them impossible to distinguish from each other without additional testing.

The Reverse of The 1964 Penny

The reverse shows Frank Gasparro’s Lincoln Memorial in Washington, D.C. If you look closely at the center of the building’s portico, you can actually see a tiny statue of Lincoln — making this one of the rare coins in history to depict the same person on both sides.

The denomination “ONE CENT” curves along the lower edge. The country name “UNITED STATES OF AMERICA” follows the upper curve, and the Latin motto “E Pluribus Unum” (meaning “From the many, one”) runs horizontally beneath it.

Other Features of the 1964 Penny

The 1964 penny measures 19 millimeters in diameter and weighs exactly 3.11 grams. It is composed of 95% copper and 5% zinc — a composition that gives it a base metal value of approximately 2.3 cents at current copper prices, compared to just 0.65 cents for the post-1982 zinc cents. That copper premium is built into its collector value floor.

Copper coins change color over time, and grading agencies assign color designations that directly affect value. A coin that retains at least 95% original red luster is graded Red (abbreviated RD). A coin that is at least 95% brown is graded Brown (BN). Anything in between is Red-Brown (RB). Red examples can be worth 10 times more than Brown at the same numerical grade.

Also Read: 100 Most Valuable Wheat Pennies Worth Money (1909 to 1958)

 

1964 Penny Mintage & Survival Data

The mintage and survival figures for 1964 pennies reveal how dramatically collector behavior affects what survives today.

Philadelphia and San Francisco together struck approximately 2,648,575,000 circulation coins, while Denver produced 3,799,071,488 — the combined total nearing 6.45 billion pieces when date-freeze production is included. The proof mintage of 3,950,762 provides a clear baseline for survival analysis.

Of those nearly 4 million proofs, roughly 31.6% survive in standard proof form (approximately 1.25 million examples). Cameo proof (CAM) specimens maintained a 15.2% survival rate with around 600,000 survivors, while Deep Cameo (DCAM) proofs — despite their superior visual quality — show only a 6.3% survival rate, leaving just 250,000 examples.

The PCGS population for the finest proof designation stands at just 10 coins graded PR70 and 3,804 NGC-certified examples at PF69. The 1964-D population at the very top grade shows fewer than two dozen PCGS-graded MS67 RD coins — with none graded higher — confirming extreme scarcity at gem levels despite the enormous original mintage.

The SMS Special Strike population is a category unto itself. PCGS has certified approximately 33 Lincoln cents total (combining all color designations), while NGC has certified just 11. Dealer records from VDB Coins document that the combined populations across all denominations in a complete 1964 SMS set total only 18 Kennedy halves, 29 quarters, 23 dimes, 23 nickels, and 33 cents.

Also Read: 100 Most Valuable Indian Head Penny Coins Worth Money (1859 – 1909)

 

The Easy Way to Know Your 1964 Penny Value

Valuing your 1964 penny goes beyond simple condition assessment. These 95% copper coins present unique grading complexities due to their metal composition and color variations. A worn piece might be worth only its 2.3-cent melt value, while pristine examples with full red luster can reach thousands of dollars.

The critical factors include Lincoln’s portrait sharpness, Memorial column definition, and surface color classification ranging from Red to Brown. Copper oxidation patterns add another layer of complexity that affects both grade and value significantly.

Use our  CoinValueChecker App to analyze these nuanced characteristics instantly. Upload a photo to receive professional grading with accurate market pricing, removing the uncertainty from copper penny valuation.

 

1964 Penny Value Guides

The 1964 Lincoln penny series offers six distinct collecting categories, each with its own value logic and condition rarity profile.

Regular circulation strikes from Philadelphia and Denver provide accessible entry points, while the proof series showcases Philadelphia’s craftsmanship at the height of the mid-1960s collector market. At the pinnacle sits the mysterious SMS Special Strike — prototype coins that were never officially released, surfaced only through an estate auction, and today command prices that rival luxury goods.

Understanding the differences between these six types is the single most important step in determining what your coin is actually worth.

1964 Penny Types:

• 1964 No Mint Mark (Philadelphia)
• 1964-D (Denver)
• 1964 Proof (Philadelphia)
• 1964 CAM (Philadelphia)
• 1964 DCAM (Philadelphia)
• 1964 SMS Special Strike (Special Mint Set)

Also Read: Value Of Old Pennies By Year (1959-Present)

 

1964 No Mint Mark Penny Value

The 1964 no mint mark penny presents a dual-origin mystery that even certified graders cannot fully resolve. Philadelphia struck approximately 2.5 billion coins, while San Francisco added around 196 million — all without distinguishing marks, leaving them permanently combined into a single collecting category.

This was the first time in modern history that San Francisco had produced Lincoln cents without a mint mark, a deliberate policy choice by Mint Director Eva Adams to suppress collector interest by facility. The result is a coin population where individual origin is simply unknowable.

Despite the enormous mintage, PCGS has graded only a handful at the very top level, with the MS67+ RD population standing at just 3 examples and an MS67 RD auction record of $7,931.25, achieved at Heritage Auctions. The PCGS price guide values an MS67+ RD specimen at $13,500 — a dramatic leap that illustrates how condition rarity operates even within a multi-billion coin series.

Red (RD) coins displaying full original copper brilliance command top premiums. Red-Brown (RB) coins with partial oxidation bring moderate prices, with the finest MS66+ RB example valued at approximately $40. Brown (BN) coins provide the most accessible entry point while still carrying historical interest.

Auction records below demonstrate how collectors have consistently recognized Red copper pennies as the ultimate expression of circulation strike preservation excellence.

Market dynamics indicate that ongoing collector demand continues to drive activity for these exceptional copper specimens.

 

1964-D Penny Value

The 1964-D Denver penny holds the record as the most prolific single-year Lincoln cent in history, with 3,799,071,488 coins produced. Yet this enormous output paradoxically creates extreme rarity at high grades, because Denver’s high-speed production environment introduced more surface contact and striking challenges than Philadelphia’s smaller runs.

According to PCGS CoinFacts, the 1964-D is common in circulated grades through MS64, becomes harder to locate in MS65, and turns genuinely scarce in MS66 — with perhaps fewer than 1,000 raw and certified examples combined available at that level. In MS67, it is one of the most difficult dates from the entire 1960s, particularly from Denver, with fewer than two dozen PCGS-graded coins known and not a single example graded higher than MS67.

The auction record stands at $4,025 for an MS67 specimen achieved at Stack’s Bowers in 2012. PCGS has graded only 4 examples at MS67+ RD, with values reaching $4,750 each. The finest 1964-D known across all grading services remains MS67 — making a theoretical MS68 the numismatic equivalent of the unknown.

Performance data below showcases how Denver copper cents from this era have gained market recognition for their quality and preservation challenges.

Collector engagement demonstrates ongoing interest in these substantial Denver copper issues.

 

1964 Proof Penny Value

The 1964 proof Lincoln penny was Philadelphia’s collector-focused product, struck from specially polished dies on individually selected and polished copper planchets. The mintage of 3,950,762 specimens reflects peak collector demand — proof set sales had grown from just 5,000 annually in 1947 to over one million by 1964, before the program was suspended.

These proof coins were sold in complete sets and intended for careful preservation, which is why a comparatively high percentage survive today. Proof coins (abbreviated PR or PF) feature mirror-like fields that reflect light like a polished glass surface, contrasting with the frosted, matte finish on the raised design elements — Lincoln’s portrait, lettering, and the Memorial.

PCGS has certified 10 examples at the pinnacle PR70 grade, while NGC has graded 3,804 specimens at PF69. The auction record for the series is $2,585 for a PR70 RD example, achieved in January 2017.

Premium auction performance below reflects how collectors have consistently valued proof quality combined with exceptional copper preservation.

Market engagement shows the dedicated collector focus that maintains steady interest for these superior proof specimens.

 

1964 CAM Penny Value

The Cameo designation (abbreviated CAM) identifies proof coins where the raised design elements — Lincoln’s portrait and the lettering — display a distinct frosty, white appearance that contrasts sharply against the deeply mirrored background fields. This visual drama is what collectors describe as the “cameo effect,” and it transforms a standard proof into a miniature work of art.

Achieving the CAM effect in 1964 was not guaranteed. It required fresh proof dies that still retained their frosted surface texture — a quality that diminished rapidly as dies struck more coins. Because early-die-state proofs were not systematically set aside in 1964, true Cameo examples represent a much smaller share of the original mintage than the face value of “nearly 4 million proofs” suggests.

The survival rate for CAM examples is approximately 15.9%, leaving roughly 628,000 specimens from the original production run. A 1964 PR69 CAM example sold for $196 at auction in December 2021, while lower-grade CAM specimens typically trade between $20 and $120 — making them accessible entry points for serious collectors.

Auction results below showcase how collectors have recognized Cameo proofs as premium examples of 1960s proof technology.

Market activity reflects the collector appreciation for these enhanced contrast proof varieties.

 

1964 DCAM Penny Value

Deep Cameo (DCAM) is the highest designation a proof coin can receive. It identifies specimens where the frosting on the raised devices is dramatically intense — almost chalk-white — creating a near three-dimensional visual effect against the deeply mirrored fields. This level of contrast was achieved only on coins struck from absolutely fresh proof dies, making DCAM examples the rarest subset of 1964 proofs.

Despite coming from a mintage of nearly 4 million proofs, the DCAM survival rate falls to just 6.3%, leaving approximately 250,000 surviving examples. PCGS has certified 184 examples at the PR69 DCAM level, with only one specimen graded higher — making that single coin a true numismatic landmark. NGC does not recognize a PR70 DCAM designation for 1964, further confirming how rarely these coins achieved perfection.

The auction record stands at $504 for a PR69 DCAM example in August 2021. The copper content provides an additional value floor — as of recent copper pricing, the metal in a 1964 penny is worth approximately 2.3 cents — a modest but real benefit over post-1982 zinc cents.

Exceptional auction performance below demonstrates how collectors have consistently pursued Deep Cameo proofs as the ultimate expression of 1960s proof craftsmanship.

Market dynamics show the intense collector interest for these superior contrast specimens.

 

1964 SMS Special Strike Penny Value

The 1964 SMS Special Strike Lincoln penny is one of the great mysteries of 20th-century American numismatics. These coins — designated SP (Specimen) by grading services — feature a distinctive satin finish that is neither the cartwheel luster of a circulation strike nor the mirror fields of a proof. They were struck once, under high pressure, using heavily die-polished tools that produced razor-sharp details with squared-off rims visible to the naked eye.

Their origin traces to Mint Director Eva Adams. Researchers believe they were prototype experimental strikes — likely produced in late 1964 or early 1965 — to test the die finishes and striking methods that would be used for the official Special Mint Sets issued from 1965 through 1967. They were never publicly released. The coins only surfaced after Adams’ death in 1991, when her estate was sold by dealer Lester Merkin, and subsequently passed through the hands of coin dealer Jesse Lipka, who acquired the majority of known sets. The 1964 SMS coins were all struck in 90% silver for dimes, quarters, and halves — a key distinction from the 1965-1967 SMS sets, which used clad coinage.

The total certified population is extraordinarily thin. PCGS has graded approximately 33 Lincoln cents across all color designations. NGC has certified just 11. Dealer records from specialist firm VDB Coins note that the certified populations have “not changed one iota” over multi-year periods, reinforcing how rarely new examples come to market. Experts at PCGS and NGC agree that all known SMS specimens lack a mint mark, confirming they were struck in Philadelphia despite occasional online speculation to the contrary.

Prices reflect this genuine scarcity. An SP67 RD example achieved $19,200 at Heritage Auctions in 2025 — the most recent public record. An SP67 had previously sold for $15,600 in 2019. The PCGS Price Guide values an SP68 RD at $75,000. A full five-coin 1964 SMS set — when one has appeared at auction — has sold for $223,700. These are not hypothetical values; they are realized prices from documented public sales.

Record-breaking auction achievements below reflect how collectors have pursued these mysterious SMS pennies as the ultimate 1964 penny prize.

Also Read: Top 100 Most Valuable Modern Pennies Worth Money (1959 – Present)

 

Rare 1964 Penny Error List

Error coins from 1964 represent some of the most valuable finds in Lincoln cent collecting. The date freeze and the unprecedented production volume — over 6.4 billion coins — stretched quality control across multiple facilities and shifts, creating a wider-than-normal range of minting mistakes. Some of these errors are worth hundreds; a few are worth thousands. Here is what to look for.

Important Warning: The single most common mistake beginners make is confusing machine doubling with a genuine doubled die error. Machine doubling creates flat, shelf-like smearing on the letters and date — it has virtually no numismatic value. A true doubled die shows rounded, full-relief secondary images with clear separation. When in doubt, consult a specialist before submitting for grading.

1. 1964 DDR (FS-801 And FS-802) Errors

The 1964 Doubled Die Reverse (DDR) varieties FS-801 and FS-802 are the most recognized error varieties in the series. These errors occur when the working die receives a misaligned second hub impression during manufacturing — the result is that design elements appear doubled, as if seen slightly out of focus.

FS-801 exhibits doubling in the “UNITED STATES” portion of the reverse inscription, while FS-802 shows stronger, more visible doubling on “ONE CENT.” According to verified auction records, a DDR FS-802 in MS66 has sold for up to $928, while an FS-801 in MS65 has achieved up to $400. The Gainesville Coins reference database confirms an MS64 RD DDR at $187 sold through GreatCollections in 2012.

Identifying these varieties requires at minimum a 10x jeweler’s loupe. The key diagnostic is rounded, full-relief doubling that adds width to the letters without reducing the height of the primary image — the opposite of flat, valueless machine doubling.

2. 1964 Penny Struck on a Silver Dime Planchet

One of the most dramatic errors from 1964 is the Lincoln cent struck on a 90% silver dime planchet. In 1964, the U.S. Mint was simultaneously producing silver Roosevelt dimes and copper pennies, in some cases at the same facility. Occasionally, a silver dime blank (measuring 17.9mm and weighing approximately 2.50 grams) accidentally entered the penny press instead of the standard 19mm, 3.11-gram copper planchet.

The result is a coin with Lincoln’s portrait and the Lincoln Memorial visible, but with a distinctly silvery-white appearance and a smaller diameter that cuts off peripheral lettering. The weight is the definitive test: a genuine silver planchet error will weigh approximately 2.50g on a precision scale, compared to the standard 3.11g.

These are classified as Transitional Off-Metal errors and are highly collectible. A Stack’s Bowers auction offered a 1964-D Lincoln cent struck on a silver dime planchet graded MS62 by PCGS, described as “the final year of the silver planchets used for dimes.” An MS61 example sold for $2,585 at Heritage Auctions in 2013. Values typically range from $1,500 to $7,000 depending on grade and eye appeal. Professional authentication by PCGS or NGC is essential for these coins.

3. 1964 Penny Multiple Strike Errors

Multiple strike errors occur when a coin fails to eject properly from the striking collar after the first die impact, receiving two, three, or more overlapping impressions. The result is a coin showing ghosted or doubled Lincoln portraits and Memorial images layered on top of each other.

A triple-strike 1964 penny (MS64 RB) sold for $1,440 at Heritage Auctions in 2020. A five-strike 1964 cent achieved $5,520 at auction — one of the highest prices ever paid for a 1964 Lincoln cent error outside the SMS category. Double-strike examples on standard copper planchets typically bring $300–$1,000; double strikes on silver dime planchets combine two error types and command significantly more.

4. 1964-D Repunched Mint Mark (RPM)

Repunched Mint Mark (RPM) errors occur when the “D” punch was applied more than once at slightly different angles during die preparation. On 1964-D pennies, this creates a visible secondary “D” partially overlapping the primary mark. Small RPMs are worth $5–$75 depending on the clarity of the secondary punch and the coin’s grade. Strong RPMs on high-grade Red examples can exceed $200.

5. 1964 Off-Center Strike Errors

Off-center strikes result from planchet misalignment before the die impacts the coin. The collector “sweet spot” for maximum value is an off-center percentage of 40–60% combined with full date visibility — examples in this range typically sell for $50–$150 or more. A broadstrike (struck without the collar, creating a flat expanded coin with no rim) brings $15–$50. Coins that are off-center but missing the date have significantly reduced value regardless of how dramatic the misalignment appears.

Also Read: 42 Rare Penny Errors List with Pictures (By Year)

 

Where to Sell Your 1964 Penny?

Your 1964 penny might be hiding serious copper value — check those mint marks, look for errors, and remember that what looks like pocket change could actually be a numismatic treasure.

Check out now: Best Places To Sell Coins Online (Pros & Cons)

 

1964 Penny Market Trend

*Market Trend Chart showing the number of people paying attention to this coin.

 

FAQ About The 1964 Penny

1. Is The 1964 Penny Worth Anything?

Most 1964 pennies in circulated condition are worth only their copper melt value — approximately 2.3 cents at current copper prices, which is itself nearly 2.5 times face value. Uncirculated examples in common grades (MS63–MS65) typically sell for $6–$16 in Red condition. However, exceptions are significant: a Red MS67 has sold for $7,931, an SMS Special Strike SP67 achieved $19,200 at Heritage Auctions in 2025, and a silver dime planchet error can bring $1,500–$7,000.

2. How Do I Know If My 1964 Penny Is Rare?

The rarest 1964 pennies fall into three categories. First, SMS Special Strike coins have a distinctive satin finish that is shinier than regular coins but not mirror-like — they also display unusually sharp details and squared-off rims. Second, error coins including doubled die reverses, silver planchet errors, and multiple strikes are identified by specific physical characteristics. Third, high-grade Red examples in MS67 or above are condition rarities even within a multi-billion coin series. If your coin looks unusual in any way, weigh it (a silver planchet error weighs ~2.50g vs. the standard 3.11g) and consult a specialist before submitting for grading.

3. What Is The Rarest 1964 Penny?

The rarest 1964 penny is the SMS Special Strike, with only approximately 20–50 surviving examples across all denominations in a complete set. PCGS has certified just 33 Lincoln cents from this series across all color designations, and NGC has certified only 11. Their provenance traces entirely to the estate of Mint Director Eva Adams, auctioned after her death in 1991. The current PCGS Price Guide value for an SP68 RD is $75,000 — a figure that reflects just how thin the market for these coins truly is.

4. How Many 1964 Pennies Were Made?

The combined mintage of 1964-dated Lincoln cents exceeded 6.45 billion pieces when accounting for all production facilities and the Treasury’s date freeze. Philadelphia and San Francisco combined for approximately 2,648,575,000 coins, while Denver struck 3,799,071,488 — the largest single-year mintage for any Lincoln cent. Coins dated 1964 continued to be produced into 1965 and in some cases early 1966 to address the national coin shortage.

5. What Does “RD,” “RB,” and “BN” Mean On A 1964 Penny?

These abbreviations refer to copper color designations assigned by grading services like PCGS and NGC. RD (Red) means the coin retains at least 95% of its original bright copper luster — the most valuable designation, worth up to 10x more than the same coin in Brown. RB (Red-Brown) means the coin retains between 5% and 94% of its red surface. BN (Brown) means the copper has fully oxidized, darkening to a uniform brown shade. These designations are assigned in addition to the numerical grade (such as MS65 or PR67) and have a direct, substantial impact on market value.

6. What Is The 1964 SMS Penny And Why Is It So Valuable?

The 1964 SMS (Special Mint Set) penny is an experimental prototype struck at Philadelphia that was never publicly released. It features a unique satin finish produced by single-strike, high-pressure minting on specially polished dies, resulting in surfaces that are sharper and more detailed than regular circulation coins but lack the mirror fields of proof coins. The coins trace to Mint Director Eva Adams’ private collection, surfacing only after her 1991 death. With fewer than 50 intact sets estimated to survive, and PCGS certifying only 33 Lincoln cents total, these coins are among the most condition-sensitive and auction-volatile in modern numismatics. The most recent SP67 RD realized $19,200 at Heritage Auctions in 2025.

7. Can I Still Find A Valuable 1964 Penny In Circulation?

Finding a circulated 1964 penny in pocket change is entirely possible — these coins are among the most common pre-1982 Lincoln cents and many billions remain in storage jars, old rolls, and estate collections. However, finding a genuinely valuable one is a different matter. SMS Special Strikes were never released into circulation and would only appear through estate sales or private collections. Error coins are theoretically findable, with silver planchet errors weighing approximately 2.50g (versus 3.11g for standard copper) being the most identifiable in hand. A portable digital scale accurate to 0.01g is the single most useful tool for screening circulated examples.

8. Does Cleaning A 1964 Penny Increase Or Decrease Its Value?

Cleaning a coin — by any method, including polishing, dipping, or even wiping — permanently destroys its numismatic value. Grading services PCGS and NGC assign a “Cleaned” or “Details” designation to cleaned coins, which typically reduces market value by 50–90% compared to an original-surface example of the same numerical grade. For an SMS Special Strike or silver planchet error, cleaning could eliminate thousands of dollars in collector value. Never clean a coin you believe may be valuable; store it in a non-PVC holder and consult a professional grader.

9. How Do I Tell If My 1964 Penny Has A Real Doubled Die Error Or Just Machine Doubling?

This is the most important diagnostic question for 1964 Lincoln cents, because machine doubling (MD) is the most common false alarm. Machine doubling creates flat, shelf-like steps on the sides of letters — the secondary image is lower and wider than the main letter, and it disappears when you tilt the coin.

A genuine Doubled Die (DDR FS-801 or FS-802) shows a rounded secondary image in full relief beside the main letter, with distinct separation at the corners of letterforms, and the doubling adds width without reducing the height of the primary element. NGC maintains a detailed guide on this distinction on their website. If in doubt, consult an error specialist rather than submitting immediately — misidentified machine doubling coins are returned with no premium and a grading fee paid.

10. What Grading Services Should I Use For A 1964 Penny And What Does It Cost?

PCGS (Professional Coin Grading Service) and NGC (Numismatic Guaranty Company) are the two most respected third-party grading services for 1964 Lincoln cents. Standard grading fees are approximately $17 per coin at PCGS and $19 at NGC for modern coins, though both services offer reduced bulk rates.

For a standard circulated or low-grade uncirculated 1964 cent, the grading fee exceeds the coin’s market value — only submit examples you believe are MS65 RD or higher, verified proof coins with DCAM contrast, potential SMS Special Strikes, or confirmed error coins. Always photograph your coin before submission and record its weight for error candidates. Authentication by either service is mandatory for any 1964 SMS specimen to be taken seriously at auction.