Rare 1921 Morgan Dollar Errors (List & Pictures)
An in-collar double strike sold for $8,050 in July 2002. These 1921 Morgan dollar errors and varieties span estimated whole-coin values of $63–$20,000.
Examine localized design clues first, then use both faces and the edge to distinguish metal flaws, collar patterns, and misplaced or repeated strikes.
| Clue | Category | Estimated range |
|---|---|---|
| Blocked detail or nearly missing S | Strike-through | $63–$5,000 |
| Repeated stars or lettering | Doubled die | $80–$2,000 |
| Raised teeth below eagle | Denticle clash | $80–$1,200 |
| Thin separating surface | Lamination | $80–$500 |
| Open split in the coin | Cracked blank | $150–$1,500, excluding major combinations |
| Gap in the outline | Clipped blank | $80–$700 |
| Consistently wider edge spacing | Wide reeding | $80–$4,000 |
| Step in the edge | Partial collar | $125–$1,500 |
| Front shifted, reverse centered | Misaligned die | $100–$1,000 |
| Complete expanded designs | Broadstrike | $600–$6,000 |
| Unstruck crescent and lost design | Off-center strike | $1,000–$16,000 |
| Two design and edge positions | Double strike | $5,000–$20,000 |
1. 1921 Dollar Detail fails to form or S nearly vanishes: strike-through Error
Philadelphia reports include a weak front and a separate broad upper-reverse obstruction. The material causing the reverse impression is not identified.
A distinct San Francisco variety has an almost invisible S because grease blocked that portion of the die. It also has a raised front line between B and U in PLURIBUS.
How to Identify
Compare an apparently unmarked dollar with a normal Philadelphia coin before claiming an error. Philadelphia normally has no mint letter.
For the S variety, inspect for a faint S outline and the paired front line using NGC’s illustrated explanation. Both features are more useful than absence alone.
For broad interruptions, compare boundaries and nearby sharp detail with ordinary wear. Scraping or displaced metal suggests another cause, and a deep impression should not be named as cloth without recognizable texture.
What It’s Worth
The combined estimate is $63–$5,000, with ordinary grease or debris effects around $63–$700 and the matched nearly missing-S variety around $1,000–$5,000.
Heritage recorded $63 for an AU55 reverse obstruction and $84 for an AU58 grease example in March 2024. NGC’s statement that its S discovery was worth upwards of $1,000 was an appraisal, not an auction result.
2. 1921 Dollar Stars or letters carry repeated outlines: doubled dies Error
One Philadelphia pattern has four outlines on the right-hand stars. Other Philadelphia descriptions include reverse repetition at N in IN.
General reports also list Denver and San Francisco doubling without one shared diagnostic map. The repeated image originates in a die rather than necessarily in a second strike on the whole coin.
How to Identify
Choose the mint-specific comparison first and inspect several right-side star points on the Philadelphia pattern. Reverse doubling requires its own close view of the appropriate lettering.
Look for copied raised contours rather than flat shelves or unrelated chips. The Philadelphia N location cannot supply a diagnostic missing from a D or S report.
What It’s Worth
Identified doubled-design varieties are estimated at $80–$2,000.
No exact sale was supplied for these patterns. Mint, preservation, and the actual spread matter more than the generic word doubled.
3. 1921 Dollar Extra raised teeth sit below the eagle: denticle clash Error
The Philadelphia denticle-clash variety has tooth-like impressions beneath the eagle, away from the normal inner border. Denticles are the small teeth lining that border.
The cataloged marks are raised and associated with contact involving the dies. The same variety may have repeated outlines on the front’s right-hand stars.
How to Identify
Start below the tail and compare several tooth shapes with an identified reference. Side lighting should reveal raised impressions rather than random dents.
Check the right-side stars as supporting evidence, but do not attribute the coin from them alone. Keep the whole reverse visible beside the close-up to preserve the teeth’s spacing and position.
What It’s Worth
Correctly matched examples are estimated at $80–$1,200.
The teeth and companion stars belong to one variety on one dollar. No separate transaction or additive price for the stars was supplied.
4. 1921 Dollar A thin flap lifts from the surface: lamination Error
Reports include a Philadelphia front defect near one o’clock, a separate NGC MS62 reverse example, and a collector’s San Francisco reverse peel. They are different specimens.
A weak layer within the ninety-percent-silver alloy can separate. These dollars do not have modern clad coins’ manufactured core and outer layers.
How to Identify
Leave a flap untouched and inspect its thin edge against the intact surface. Follow any struck detail onto the separating metal.
A stain has no layer boundary, while a scrape may leave parallel grooves and pushed metal. Confirm the mint and actual face before selecting a comparison.
What It’s Worth
Typical authenticated laminations are estimated at $80–$500.
An AU55 with laminations on both faces sold for $104 at Heritage in March 2024. That was one whole-coin price for two affected surfaces.
5. 1921 Dollar The silver itself opens along a line: cracked blank Error
A cracked blank has a physical split in the coin rather than a raised ridge copied from a damaged die. Reports include San Francisco and Philadelphia examples.
A Denver example reported by CONECA combines a front crack with a ten-percent off-center strike. The displacement and split need separate examination.
How to Identify
Inspect where the opening reaches the rim and whether it continues through the thickness. Do not bend the coin or insert anything into the split.
Side views can distinguish an opening from a raised line over intact metal. Parallel grooves inside the gap may indicate later cutting.
For the Denver combination, preserve both faces and the fracture boundary in photographs. The off-center description does not by itself establish the split’s origin.
What It’s Worth
A confirmed cracked blank without another major error is estimated at $150–$1,500.
The Denver compound error may exceed that simple range and needs its own comparison. No exact sale was supplied, and later bending or sawing remains damage.
6. 1921 Dollar A segment is missing from the outline: clipped blank Error
Philadelphia and San Francisco clips appear in auction catalogs. One Philadelphia specimen has a shallow gap near one o’clock plus a separate partial-collar feature.
An original clip predates the strike, sometimes forming when the blank cutter overlaps an earlier hole. Later cutting can create a similar outline.
How to Identify
Normal weight is 26.73 grams, but reduced weight alone cannot distinguish a clip from later removal. Examine the exposed boundary for saw or file marks.
Follow the rim into both ends of the gap and look for design formed around an incomplete blank. Opposite-rim weakness can support the diagnosis.
What It’s Worth
Authenticated clips in ordinary conditions are estimated at $80–$700.
An NGC AU58 curved clip brought $84 at Heritage in March 2024. A clip combined with partial collar remains one coin to value.
7. 1921 Dollar Wider grooves continue around the edge: wide reeding Error
Some Philadelphia dollars have 157 edge grooves rather than the commonly cited 189. The spacing difference reflects a collar variety.
It runs around the entire circumference. It does not mean the blank escaped the collar or simply lost one section of grooves.
How to Identify
Count the entire edge using overlapping photographs and a visible starting landmark. Do not estimate from one short segment or mark the metal.
Compare the distributed spacing with a normal Philadelphia edge at equal magnification. A filed patch does not produce a consistent 157-groove pattern.
If a holder blocks the view, keep it intact and use reliable edge images or professional attribution. The full count is the useful distinction.
What It’s Worth
Identified examples and stronger condition or variety combinations are estimated at $80–$4,000, with most ordinary examples much nearer the low end.
An NGC MS63 sold for $240 at Heritage in December 2023. PCGS also lists a $3,499 June 2022 eBay result for a Genuine-labeled coin, which is marketplace context rather than a typical-price guarantee.
8. 1921 Dollar Grooved and expanded metal meet at a step: partial collar Error
A partly seated blank can form an edge step because only some metal receives normal collar support. A tilted fit makes that step vary around the edge.
The reported San Francisco XF45 has a narrow front rim near seven o’clock and a wider one near one o’clock. Other reports include the Philadelphia clip combination and an uncertified Denver specimen.
How to Identify
Use edge views to follow the junction between grooved metal and the portion that expanded beyond the ring. A front-only photograph cannot establish partial collar.
Compare the changing step around a tilted example. The stated seven- and one-o’clock margins belong to the S specimen, not every dollar in this category.
What It’s Worth
Authenticated partial-collar dollars are estimated at $125–$1,500.
The uncertified Denver example recorded a $125 winning bid before applicable fees at a local auction. It is not a certified-grade benchmark or a fee-inclusive total.
9. 1921 Dollar Only the front design shifts: misaligned die Error
CoinHub illustrates a 1921-S in NGC XF40 with a displaced front and centered reverse. One die was out of position without the blank necessarily shifting beneath both tools.
How to Identify
Center the coin’s outline in square photographs of each face. Compare the design-to-rim distances around both sides.
The front’s imbalance should contrast with a normally centered back. Check for camera tilt or edge impacts that could distort that appearance.
What It’s Worth
Authenticated S-mint one-sided shifts are estimated at $100–$1,000.
No sale amount was supplied for the illustrated XF40. The grade describes wear rather than the degree of die displacement.
10. 1921 Dollar Complete designs spread beyond normal width: broadstrike Error
The documented Philadelphia PCGS MS64+ has an enlarged rim from nine to two o’clock and no edge grooves. The blank spread without normal collar containment.
Denver and San Francisco examples are also reported. Uneven centering can occur while the whole intended design remains present.
How to Identify
Compare several widths with the normal 38.1 millimeters on a loose coin. Inspect expansion and the edge together rather than diagnosing from smoothness alone.
Trace all outer design on both faces and look for original outward flow. Filed-away grooves or hammering do not reproduce the same event.
What It’s Worth
Authenticated broadstrikes are estimated at $600–$6,000.
The Philadelphia MS64+ sold for $1,020 at Heritage in July 2021. Its nine-to-two-o’clock expansion should not be transferred to a different specimen.
11. 1921 Dollar An unstruck crescent faces missing design: off-center strike Error
The Smithsonian holds a Denver example, and a cataloged San Francisco coin is twenty percent off center. The S coin’s date missed the blank, so the catalog places 1921 in parentheses as a design-based attribution.
Philadelphia examples are reported too. An uneven rim with complete design needs comparison with broadstriking or one-sided die misalignment.
How to Identify
Match the blank crescent and lost design on both faces to one displaced disc. One narrow rim alone is insufficient.
Read mint and date separately, distinguishing an actual visible year from attribution. Inspect for cutting because striking off center does not itself remove blank metal.
What It’s Worth
Authenticated examples have an estimated range of $1,000–$16,000.
A five-percent off-center Denver dollar graded PCGS AU55 brought $2,760 at Heritage in March 2024. A catalog-attributed hidden date needs a different comparison from an equally dramatic coin with a readable year.
12. 1921 Dollar Repeated designs share a small turn: in-collar double strike Error
A Philadelphia ANACS MS64 rotated several degrees counterclockwise between strikes while remaining within the collar. The catalog also records two sets of edge grooves in a separate photograph.
A different dealer example is PCGS AU58. The whole-coin event should not be confused with a small repeated feature already present in one die.
How to Identify
Trace widely separated portrait, lettering, and border remnants. Their positions should agree with one small rotation between blows.
For the Heritage specimen, request the original edge photograph because the holder obscured the doubled grooves. Keep the holder intact and tie that hidden evidence to the actual face pattern.
What It’s Worth
Authenticated in-collar double strikes are estimated at $5,000–$20,000.
The ANACS MS64 sold for $8,050 in July 2002. That older transaction is a documented specimen comparison, not a guarantee for every doubled-looking dollar.
Conclusion
A nearly missing S requires its matching front line, wide reeding requires a complete groove count, and a displaced strike requires both faces. Each inspection should target the evidence that explains the proposed event.
Keep mint, condition, and individual specimens separate, including coins with two simultaneous defects. The recorded prices range from modest obstruction sales to a strong double strike, with no single formula linking visual size to value.
