Rare 1842 Half Dollar Errors (List & Pictures)
For 1842 half dollars, the coin type comes before the unusual mark. Mint, date size, reverse lettering, and Proof manufacture can change a price comparison dramatically.
These 1842 half dollar errors have estimated values of $150–$45,000. A rare Small Date Proof with repunched numbers sold for $38,400 in January 2020.
Match the date and reverse design, then follow the number fragments, lettering, raised breaks, and alignment checks.
| Feature | Matching coin type | Estimated comparison |
|---|---|---|
| Repunched date | Medium Date regular coin or Small Date Proof | $300–$4,000 regular; $30,000–$45,000 Proof |
| Misplaced number fragment | Philadelphia Medium Date | $300–$900 worn; $2,000–$4,000 near MS64 |
| Doubled reverse | Small Date, large reverse letters | $1,500–$3,500 |
| Rim cud above STATES | Small Date, large reverse letters | $150–$700 |
| Rim clip | Philadelphia Medium Date | $350–$1,200 |
| Die cracks | Match the mint and reverse separately | $2,000–$4,000 or $25,000–$40,000 at the stated unworn grades |
| Rotated reverse | 1842-O, date size must be checked | $200–$900 common subtype; $1,000–$2,500 scarce Small Date |
Small Date and Medium Date describe normal date styles, while the reverse can use different-sized lettering. A normal unworn half weighs 13.36 grams and measures about 30.6 millimeters across, with a grooved edge.
1. 1842 Half Dollar Earlier Number Pieces beside the Date: Repunched Date Error
The regular Philadelphia Medium Date example shows extra date strokes to the right. The Small Date Proof instead has a lower remnant strongest at the 2.
Both reflect more than one date-punch position in the die. They do not require a second strike of the whole coin.
How to Identify
Identify the date style and coin type before enlarging the numbers. Compare rightward remnants on the Medium Date coin and the lower trace beneath 2 on the Proof.
Look for a recognizable raised number piece rather than glare or a flat shelf. Proof identification also needs the appropriate overall strike and surfaces, not merely extra date strokes.
What It’s Worth
Estimated range: $300–$4,000 for circulated through MS64 Medium Date examples. The documented MS64 CAC sale at $2,702.50 provides the better-condition comparison.
A Small Date PR64+ PCGS CAC Proof brought $38,400 in January 2020. Comparable rare Proofs have an estimated $30,000–$45,000 range.
That specially made collector coin belongs to a different market from an ordinary worn half. Its rarity and manufacture dominate the comparison.
2. 1842 Half Dollar A Number Fragment in the Skirt: Misplaced Date Error
The Philadelphia Medium Date variety has a numeral fragment among Liberty’s skirt folds and a reported remnant near the shield point. The normal date sits elsewhere below the design.
An incorrectly placed date punch left part of its impression in the die. The documented MS64 also has repunching beside its normal date, reflecting different punch positions on one tool.
How to Identify
Inspect the skirt and the area just right of the shield point with a magnifier. Keep the normal date visible to preserve the stray fragment’s location.
Compare with a confirmed Medium Date example under changing light. A fold, nick, or clash trace can resemble a small numeral when cropped too closely.
Confirm the absence of a mint letter and the matching reverse. The shape and position must agree, not simply the presence of an extra line.
What It’s Worth
Estimated range: $300–$900 for matching circulated examples, or $2,000–$4,000 around MS64. These brackets separate variety identity from level of preservation.
The MS64 PCGS CAC sold for $2,702.50 at Stack’s Bowers in 2013. Its price includes the misplaced number, repunched date, and reverse crack together.
3. 1842 Half Dollar Repeated Letter and Shield Outlines: Doubled Die Reverse Error
The reported reverse doubling affects inscriptions, denomination letters, the eagle’s head, an upper wing area, and horizontal shield lines. It belongs to Philadelphia’s Small Date with large reverse letters.
These repeated shapes were already in the stamping die. Several matching areas are better evidence than a single thick letter.
How to Identify
Compare the letters, eagle, and shield lines with Bugert’s Philadelphia photographs. Keep the Small Date front linked to that large-letter reverse.
Change the lamp angle to separate rounded repeated shapes from flat shelves or reflections. Match corresponding extra outlines in several locations.
What It’s Worth
Estimated range: $1,500–$3,500 for an attractive identified example with light to moderate wear. A report of the 2006 Jules Reiver sale gives $1,600 before the buyer’s fee for an AU55.
Adding the stated fifteen-percent premium gives $1,840. Keep that distinction when comparing the result with prices that already include fees.
4. 1842 Half Dollar A Raised Rim Patch above TAT: Cud Error
A cud joins the rim above TAT in STATES on the Small Date, large-letter reverse combination. Specialists call this back the Reverse of 1842.
Silver filled a gap left by a broken piece at the die’s edge. The patch is a familiar feature of the matching die pair, so prominence alone does not establish extreme rarity.
How to Identify
Match the Small Date and large-letter reverse first. The rare Small Letters combination is a different coin.
Inspect the patch above TAT for a natural rim connection and compare its boundary with the reference. Check the adjacent edge for repair, added metal, or impact damage.
What It’s Worth
Estimated range: $150–$700 for circulated through lightly worn examples with a clear cud. An ANACS AU55 Small Date, Reverse of 1842 brought $292.80 in June 2026.
That is a coin-type comparison without a separate cud price. An older AU55 explicitly described with the TAT patch sold for $287.50 in 2001.
5. 1842 Half Dollar An Original Gap in the Rim: Clipped Planchet Error
A Rippere Collection Medium Date half is identified by GreatCollections as an ANACS AU50 rim clip. The grade indicates light wear.
The listing gives no clip percentage or clock position. Those details must come from the Philadelphia coin itself, not another clipped example.
How to Identify
Inspect both ends of the gap and its exposed wall under magnification. The struck rim should meet a boundary that was present before the design formed.
Saw marks, filing, or abrupt cuts through finished detail indicate later removal. Opposite-rim weakness may help, though a small clip may not show it clearly.
Weigh a loose coin and measure intact spans against the normal specifications. The missing-piece shape alone does not establish how it formed.
What It’s Worth
Estimated range: $350–$1,200 for a genuine Medium Date rim clip with attractive circulated through lightly worn detail. The March 2025 AU50 listing supplies an identified example without a sale price used here.
An 1832 Capped Bust half with a minor rim defect totaled $263.25 including premium in July 2025. Its ANACS XF45 grade and different design make it a modest related-flaw comparison.
6. 1842 Half Dollar Mint-Specific Raised Routes: Die Cracks Error
The New Orleans Small Date, Small Letters example has a short raised line between A and L in HALF. That coin uses the older reverse design called Reverse of 1839.
Philadelphia’s Medium Date has another route across the branch and stem toward the claw, wing, and UNITED. The two patterns belong to different tools.
How to Identify
For New Orleans, find the low O and inspect the A-to-L line. For Philadelphia, follow the separate branch-to-UNITED route instead.
Check date size and reverse lettering before tracing the ridge under side lighting. Do not combine landmarks from the two references into one pattern.
What It’s Worth
Estimated range: $25,000–$40,000 for the scarce 1842-O Small Date, Small Letters at similarly high preservation. A PCGS MS62 sold for $35,250 in January 2014.
The separate Philadelphia Medium Date MS64 sale at $2,702.50 supports a $2,000–$4,000 comparison near that grade. The mint and reverse combination explain far more than the mere presence of a crack.
7. 1842 Half Dollar An Eagle Tilted after a Flip: Rotated Dies Error
A 2007 collector report records an 1842-O reverse about seventy degrees counterclockwise from normal alignment. It describes Very Fine condition without identifying the date-size subtype.
The rotation concerns how the two dies faced one another. It does not establish the coin’s date size or require an unusual outline.
How to Identify
Hold Liberty upright beside a fixed mark and flip top to bottom without twisting. Repeat and measure the eagle’s angle using a protractor or aligned image grid.
Do not use independently straightened photographs to measure rotation. Find the O and identify the date style separately before assigning a price bracket.
Inspect the edge for tampering or a seam. A genuine alignment difference should return consistently with the same controlled flip.
What It’s Worth
Estimated range: $200–$900 for circulated common subtypes with substantial rotation. A scarce Small Date can instead fall around $1,000–$2,500.
The reported Very Fine example has no assigned date size. Ordinary 1854-O lightly worn results at $342 and $720 provide nearby-series context, not sales of that seventy-degree coin.
Conclusion
Identify the whole coin before the mark: mint, date size, reverse lettering, and Proof status determine which comparison applies. Then inspect the raised patch, numeral, line, or repeatable tilt.
The $150–$45,000 span includes common circulated coins, scarce combinations, and rare Proofs. A small crack or extra number does not make those groups interchangeable.
