Rare 2021 Quarter Errors Worth Money (Full List with Pictures)

A 2021-D Crossing the Delaware quarter with a missing clad layer sold for over $300 at GreatCollections, graded NGC MS-64. 2021 Quarter errors range from $15 for minor die chips to $300 or more for major planchet defects, spanning both the Tuskegee Airmen and Crossing the Delaware designs struck that year.

Here is every verified error and what each one is worth.

1. 2021 Tuskegee Airmen Quarter Plane Wing Die Chip Error (Up to $15)

During high-speed production, the die that stamps the Tuskegee Airmen reverse developed fractures in the area corresponding to the P-51 Mustang aircraft. When die steel breaks away, the void fills with planchet metal, creating a raised lump on the finished coin.

On affected quarters, a visible blob appears on the wing of the P-51 fighter. The wing area is a stress point because the fine aircraft detail requires deep engraving in the die steel — deeper recesses fracture first under repeated pressure.

Both Philadelphia and Denver coins show this error.

Value: Uncertified 2021 Tuskegee Airmen quarters with a plane wing die chip have sold on eBay for $5 to $15, depending on chip size and coin condition. No PCGS or NGC certified examples have appeared at Heritage Auctions or GreatCollections.

Similar wing chips on other ATB quarters from 2019 and 2020 trade in the same range. Die chips on minor design elements like this rarely break above the mid-teens even in uncirculated condition.

How to Identify: Examine the P-51 Mustang on the reverse under 5x magnification. Look for a raised, irregular lump of metal on the wing surface — it should sit above the normal plane detail, not below it.

The chip typically appears where the wing meets the fuselage or along the leading edge, since these are the deepest-cut areas of the die. Compare against a normal 2021 Tuskegee quarter to confirm the lump is absent on standard coins.

A genuine die chip is always raised. If the mark is pressed into the surface or shows scratch patterns, it’s post-mint damage from contact with other coins.

Weight should remain the standard 5.67 grams and diameter should measure 24.26mm. The fastest confirmation: a raised lump on the wing in the same location as other reported examples.

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2. 2021 Quarter Feeder Finger Error (Up to $30)

The US Mint uses automated feeder fingers to slide planchets into the striking collar at speeds up to 750 coins per minute. When timing drifts or the mechanism loosens, the metal finger grazes across the die face, scratching the working die itself.

Every coin struck afterward carries raised parallel lines in the fields. On 2021 quarters, these scrapes appear most often on the Tuskegee Airmen reverse, where the large open sky and ground fields make lines clearly visible.

Both mint marks and both designs show this error.

Value: Feeder finger scrapes on 2021 quarters trade between $3 and $15 raw, depending on severity — heavy scrapes with deep channels visible to the naked eye bring the upper end. Certified MS65 or MS66 examples with prominent scrapes have sold on eBay for $15 to $30.

No Heritage Auctions or GreatCollections records exist for this error type on the 2021 issue. Light scrapes visible only when tilting the coin under light carry zero premium.

How to Identify: Hold the coin at an angle under directional light and rotate slowly. Look for perfectly straight, parallel raised lines in the open reverse fields.

The critical authentication test: the lines must pass under raised design elements and resume on the other side. Tilt the coin and watch lines disappear behind lettering or the pilot portrait, then reappear — lines passing under devices prove the damage originated on the die.

Post-mint scratches cut through design elements and show furrow-like ridges on the sides. Bag-contact hairlines run in random directions, not perfectly parallel.

The fastest confirmation: parallel raised lines that disappear behind a raised device and continue unbroken on the other side.

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3. 2021 Tuskegee Airmen Quarter Burning Building Strike Through Error (Up to $50)

On some 2021 Tuskegee Airmen quarters, a struck-through mark creates streaks on the Moton Field control tower behind the pilot, making the building appear to be on fire. The effect likely results from foreign material between the die and planchet during striking.

This error has no PCGS or NGC variety designation and trades on eBay under the collector nickname “Burning Building.” Most examples come from the Philadelphia mint, though a Denver version has been reported.

The hobby is split — some collectors value it as a struck-through, while experienced error specialists consider it overhyped.

Value: Uncertified 2021-P Tuskegee Airmen quarters with the “Burning Building” pattern have sold on eBay for $20 to $50. A paired listing with a 2020 “Blind Bat” error was priced at $170.

No PCGS or NGC certified examples exist, and no major auction house has sold a graded specimen. Without third-party authentication, prices depend on buyer confidence and the visual strength of the individual coin’s strike-through marks.

How to Identify: Examine the Moton Field control tower on the reverse under 5x magnification. The “Burning Building” effect appears as streaks, smudges, or raised lines extending from the tower, creating the visual impression of flames or smoke.

The marks should be consistent with a struck-through — smooth and integrated into the coin’s surface. A genuine struck-through sits at the same level as surrounding design, while post-mint damage creates incuse marks below the surface.

Compare against multiple online examples. The pattern varies between specimens because each strike-through involves different foreign material — no single diagnostic marker exists like a doubled die variety would have.

Weight and diameter remain standard at 5.67 grams and 24.26mm. The fastest confirmation: smooth, die-level marks on the building area that cannot be felt as incuse scratches with a fingernail.

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4. 2021 Crossing the Delaware Quarter Struck Through Grease Error (Up to $60)

Grease accumulates in die recesses during high-speed production. When the die strikes, grease fills space that should impart design detail, leaving a smooth void where a letter or element belongs.

The most recognized version on the 2021 Crossing the Delaware quarter is “IN GOD WE RUST” — grease fills the T recess in TRUST, producing a blank where the letter should appear. A missing P mintmark from grease fill is also documented on this issue and trades for $5 to $10.

The visual effect ranges from a single weak letter to entire mottos vanishing.

Value: Minor struck-through-grease errors with a single weak letter sell for $2 to $5 raw on eBay. Significant examples with multiple missing elements or a full “IN GOD WE RUST” effect trade for $5 to $20 raw.

Certified MS65 or MS66 examples with dramatic grease effects have sold for $30 to $60. No Heritage Auctions or GreatCollections records specific to the 2021 struck-through-grease have been documented.

How to Identify: Look for localized areas of missing or extremely weak design on an otherwise sharp coin. The affected spot should be smooth and uniform — not scratched or worn down from circulation.

The key distinction from wear: circulated coins lose detail gradually from the highest points first. Struck-through-grease leaves a clean, polished-looking void in one specific spot while surrounding detail stays crisp — that contrast is the diagnostic.

For the missing P mintmark version, check behind Washington’s ponytail where the P should appear. If the surface is smooth and recessed rather than worn flat, grease filled the mintmark recess.

Weight remains 5.67 grams. The fastest confirmation: a smooth blank area surrounded by fully struck detail on a coin that otherwise looks uncirculated.

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5. 2021 Crossing the Delaware Quarter Crown Die Chip Error (Up to $80)

The die area corresponding to Washington’s tricorn hat in the boat scene is a deep recess under extreme stress during striking. As the die fatigues, pieces of steel fracture away — a process called spalling — and planchet metal flows into the void.

The result is a raised, irregular lump on Washington’s hat. This error is progressive: the fracture grows with each strike, tracked by collectors through three stages from a tiny “bud” at face value to the “Full Crown” covering over 75% of the hat.

Both P and D mint coins show this error.

Value: Stage 3 “Full Crown” die chips trade for $10 to $35 raw on eBay. Certified MS66 examples have sold for approximately $40, with top specimens reaching $50 to $80.

Stage 2 “Half Crown” chips bring $2 to $5 raw, while Stage 1 “Bud” chips — tiny pinpoint dots — are face value only. Sellers frequently hype Stage 1 chips as rare finds, but a pinpoint dot on the hat is worth twenty-five cents.

How to Identify: Examine Washington’s tricorn hat on the Crossing the Delaware reverse under 5x magnification. The Crown die chip appears as a raised, irregular lump on the hat’s upper ridge.

Size determines stage and value: Stage 1 is a pinpoint dot on the hat edge, Stage 2 covers roughly 25% to 40% of the hat top, and Stage 3 “Full Crown” covers over 75% with an often jagged appearance. Only Stage 3 carries meaningful trade value.

The chip must be raised, in relief above the hat surface. Dents pressed into the metal are post-mint damage, and mushy hat detail without a distinct raised lump is Late Die State deterioration — common, worth face value.

The fastest confirmation: a raised, irregular lump covering most of Washington’s hat top on the Crossing the Delaware reverse.

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6. 2021 Crossing the Delaware Quarter 3 Oar Doubled Die Reverse Error (Up to $100)

This variety affects only the 2021-P Crossing the Delaware quarter. During hubbing, when the master hub stamps its design into a working die, the hub was slightly tilted between impressions — pressing a secondary off-angle image into the die steel.

That flawed die stamped a ghost oar shaft below the primary oar held by the boatmen, creating the look of a third oar floating in the water. Classified as WDDR-003 by the Wexler doubled die files, this Class VIII Tilted Hub doubled die is the top cherrypicker variety for 2021 quarters.

Every coin from that die carries the extra oar.

Value: Raw circulated 2021-P Crossing the Delaware quarters with WDDR-003 sell for $5 to $15 on eBay. Certified MS65 and MS66 examples trade for $45 to $75.

The highest documented sale reached approximately $100 for a high-grade certified specimen. As a permanent die variety rather than a random striking error, WDDR-003 retains consistent interest among Wexler set collectors and cherrypickers searching bank rolls.

How to Identify: Examine the oars on the 2021-P Crossing the Delaware reverse under 10x magnification. On a normal coin, each oar is a single sharp shaft — on the WDDR-003, a distinct ghost oar shaft appears directly below the primary oar.

The secondary oar must be rounded and raised, with relief similar to the primary. This distinguishes it from machine doubling, which creates flat stepped shelves beside design elements — if the secondary image is flat and makes the oar appear thinner, it’s machine doubling at face value.

This variety exists only on Philadelphia coins — check the mintmark first, because if it’s a D, you don’t have WDDR-003. Die erosion produces overall mushy detail across the entire reverse, not an isolated ghost oar on one element.

The fastest confirmation: a sharp, distinct separate oar shaft below the primary oar on a 2021-P coin only.

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7. 2021 Quarter Missing Clad Layer Error (Up to $300)

Standard clad quarters are a copper core bonded between outer nickel-silver layers. A missing clad layer error occurs when one outer layer fails to bond during planchet preparation, before the blank reaches the press.

The struck coin exposes the copper core on one face — a dramatically two-toned quarter with one silver side and one reddish-copper side. Both color change and significant weight reduction must be present for authentic attribution.

GreatCollections sold a 2021-D Crossing the Delaware example graded NGC MS-64 at only 4.7 grams, well under the standard 5.67.

Value: The 2021-D Crossing the Delaware missing clad layer graded NGC MS-64 at 4.7 grams sold at GreatCollections for over $300. Raw uncertified missing clad layer quarters trade for $20 to $50 on eBay.

Certified MS65 or higher specimens command $100 to $300. This is the most valuable verified error in the 2021 quarter series because the dramatic visual contrast and measurable weight difference make authentication straightforward.

How to Identify: Color is the first indicator — one face appears distinctly reddish-copper instead of normal silver-gray. Color alone is not enough, though, because plated or chemically altered coins can also appear copper-toned.

The definitive test is weight — a standard clad quarter weighs 5.67 grams, while a missing clad layer quarter weighs approximately 4.7 to 5.1 grams because an entire metal layer is absent. Both color change and underweight must be present together.

Check the edge — on a normal quarter the layered sandwich is visible, while a missing clad layer coin has one outer band absent or noticeably thinner. Plated coins, the most common false positive, weigh a normal 5.67 grams.

The fastest confirmation: if it weighs under 5.2 grams and one face is copper-colored, it’s almost certainly genuine.

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Conclusion

The 2021 quarter error list spans from $15 die chips on the Tuskegee Airmen P-51 Mustang to a $300 missing clad layer documented at GreatCollections, with the Crossing the Delaware reverse producing most of the variety interest through its Crown die chip, WDDR-003 doubled die, and grease struck-throughs. A digital scale, a 10x loupe, and patience with bank rolls are the only tools required.