A perfect PR-70 Deep Cameo example sold for $24,000 at Stack's Bowers — while the same coin worn and circulated is worth just $6 in silver. The gap between those two numbers is what this page helps you navigate. Whether you have a common Denver strike or a rare proof variety, the free calculator below gives you an instant, research-backed estimate.
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The 1968-S Inverted Mintmark is one of the most exciting discoveries in the Kennedy half dollar series. Use this four-point checklist to assess whether your coin could be the real thing. You'll need a 10× loupe or magnifier.
Small loop faces UP
Large, bulb-shaped loop sits at the bottom. The tail of the S curves left at the bottom. This is the standard appearance on all regular 1968-S proofs.
Large loop faces UP
The large, bulb-shaped loop is at the top. The tail of the S curves left at the top instead of the bottom. Caused by a 1940s-era punch used accidentally upside-down.
Values range from just a few dollars in worn condition to five figures for the finest-known proof specimens. For a complete illustrated 1968 half dollar identification walkthrough covering every variety and grade point, see this in-depth 1968 half dollar identification reference.
| Variety | Worn / Circulated | AU / MS-60–63 | MS / PR 64–65 | Gem MS-66+ / PR-69+ |
|---|---|---|---|---|
| 1968-D (Regular) | $6 – $12 | $12 – $18 | $20 – $60 | $60 – $650+ |
| 1968-D MS-67 (Cond. Rarity) | — | — | — | $650 – $7,500+ |
| 1968-D Tripled Die Obverse | $10 – $20 | $20 – $75 | $75 – $300 | $300 – $550+ |
| 1968-S Inverted S FS-511 ★ | $50 – $100 | $100 – $250 | $250 – $500 | $500 – $800+ |
| 1968-S Standard Proof | — | $10 – $18 | $18 – $40 | $40 – $135 |
| 1968-S Proof CAM | — | — | $25 – $60 | $60 – $200 |
| 1968-S Proof DCAM | — | — | $50 – $150 | $150 – $1,500+ |
| 1968-S DDR FS-801 | — | — | $200 – $800 | $800 – $3,833+ |
| 1968-S PR-70 DCAM ⚑ Rarest | — | — | — | $12,000 – $24,000 |
| Off-Center Strike (20%+) | $100 – $200 | $200 – $400 | $400 – $600 | $600 – $1,000+ |
| Wrong Planchet Error | — | $500 – $1,500 | $1,500 – $3,500 | $3,500 – $5,000+ |
★ Highlighted row = Signature variety. ⚑ = Rarest known. Values based on PCGS, Heritage, and Stack's Bowers auction data. Based on PCGS auction data · 2026 edition.
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The 1968 Kennedy half dollar series produced several distinct collectible errors and die varieties—ranging from accessible finds that circulate on eBay for under $100 to proof rarities worth several thousand dollars in top grades. Unlike base-metal modern coins, every 1968 error variety sits on a foundation of 40% silver melt value, giving even common examples a meaningful price floor. The five varieties below are documented, actively traded, and worth knowing before you visit a coin show or submit a coin for grading.
This proof variety occurred when a San Francisco Mint technician accidentally used an old 1940s-era "S" punch that was oriented upside-down relative to current standards. The mistake went undetected during production, and affected coins were distributed in 1968 proof sets to collectors worldwide. The variety was not discovered until February 2018, when Florida coin dealer Bob Ryan identified and reported it to variety expert Ken Potter.
To spot the error, examine the S mint mark below Kennedy's neck through a 10× loupe. On a normal 1968-S, the small loop of the S faces upward and the large, bulb-shaped loop sits at the bottom. On the FS-511 variety, this orientation is completely reversed—the large loop faces up and the tail curves left at the top rather than the bottom. The variety also carries associated doubling visible on "IN GOD WE TRUST," making it a compound variety sought by both mintmark and doubled die specialists.
Collector demand for this discovery variety has been steady since its 2018 attribution. Certified examples command premiums well above silver melt, with PR-66 examples reaching approximately $795 on eBay in early 2025. The PCGS designation number 391224 and FS-511 listing in the Cherrypicker's Guide provide authenticated attribution for this collectible error.
The 1968-S Proof was the first Kennedy half dollar proof struck at the San Francisco Mint, produced when the Mint resumed traditional proof sets after the 1965–1967 Special Mint Set interlude. Deep Cameo (DCAM) contrast develops only on coins struck immediately from freshly polished, acid-treated dies—meaning only the earliest impressions from each fresh die set exhibit this prized characteristic.
A DCAM coin displays Kennedy's portrait as a nearly white-frosted, almost three-dimensional device floating above glass-like mirror fields. The contrast must be present on both obverse and reverse to earn the designation. PCGS reports only 16 certified examples at the ultimate PR-70 DCAM grade out of 3,041,506 proof sets produced—a perfection rate of less than 0.0005%. NGC has certified zero examples at this level.
The rarity of the perfect grade drives extreme auction results. The current PCGS record for this issue is $24,000, realized at Stack's Bowers on June 13, 2023 (PCGS cert #7733373). An earlier Heritage Auctions example (cert #83143320) brought $21,600 in November 2017. Even PR-69 DCAM examples trade for $135–$235, demonstrating how dramatically cameo quality multiplies the value of this common-mintage proof issue.
The 1968-S DDR FS-801 is a working die variety created when the hub impressed its design onto the die in two slightly misaligned strikes during die preparation. The misalignment is preserved in every coin struck from the affected die, making this a true die variety rather than a coin-by-coin striking accident. It is designated FS-801 in the Cherrypicker's Guide and carries PCGS attribution.
Doubling on this variety is visible on the reverse, affecting the eagle's design and the surrounding peripheral legends. Examined under a 10× loupe, collectors should look for a secondary, slightly offset impression of the lettering "UNITED STATES OF AMERICA" and doubling on elements of the eagle's feathers and shield. The variety appears across proof quality levels—standard proof, CAM, and DCAM examples all exist.
Because this variety occurs on proof coins with the sharp, high-relief strike that makes die separation visible at much lower magnification than on business strikes, it attracts strong collector demand. The DDR FS-801 in PR-68 DCAM grade has sold for $3,833, and a PR-67 example realized $2,820 at auction. Multiple independent sources confirm steady market activity for this variety, making it among the most financially significant die errors in the 1968 Kennedy series.
Despite being frequently described as a "doubled die," this variety actually shows three distinct die impressions on the obverse—making it technically a tripled die obverse (TDO). The misalignment occurred during the hub-pressing stage of die manufacture, when the working die was impressed multiple times with slight angular or positional shifts between each press. The variety is designated FS-101 in the Fivaz-Stanton reference and carries PCGS attribution number 391307.
The most prominent tripling is visible on "IN GOD WE TRUST," particularly on the letters of the word TRUST, where three overlapping impressions create a soft, feathered appearance rather than a crisp single impression. The variety is considered a business-strike error native to the Denver Mint's 1968-D production run. Under 5× to 10× magnification, the tripling on TRUST is unmistakable; on the date and LIBERTY legend, the effect is more subtle but still identifiable.
Kennedy Half Dollar variety specialists and CONECA-registered collectors actively seek this designation. An MS-65 example realized $288 at Stack's Bowers, and an MS-64 example sold for $299 in 2012. With a value range up to $550+ for top-grade examples, this variety rewards patient "cherrypicking" of 1968-D half dollars in estate lots and coin rolls.
Among the most visually striking errors possible in U.S. coinage, the wrong planchet error occurs when a blank intended for a different denomination accidentally enters the half dollar production line. For the 1968 issue, the documented variant involves San Francisco proof planchets sized for Washington quarters (copper-nickel clad, smaller diameter) being struck with the Kennedy half dollar proof dies. The result is a coin noticeably smaller than a standard 30.61mm half dollar, with the design compressed and slightly distorted to fit the narrower flan.
Physical detection is straightforward: a genuine wrong planchet error weighs significantly less than the standard 11.50 grams. A quarter planchet weighs approximately 5.67 grams, so any 1968-S proof coin weighing under 6 grams warrants immediate expert examination. The coin's diameter will also be visibly narrower than a normal half dollar, and the design periphery will show crowding or cutoff lettering where the design overfills the smaller planchet.
Wrong planchet errors are dramatic collector pieces that attract bidding from both error specialists and type collectors. A 1968-S Proof struck on a quarter planchet graded PR-67 sold for over $5,000 in mid-2024, confirmed by multiple independent sources including CoinValueApp and CoinValueChecker. Because these errors can be manufactured through post-mint alteration, certification by PCGS or NGC error division is considered mandatory for authentication before any purchase or sale.
| Mint | Mint Mark | Strike Type | Mintage | Notes |
|---|---|---|---|---|
| Denver Mint | D | Business Strike | 246,951,930 | Circulation production; heavy bag handling caused surface contact marks on most examples |
| San Francisco Mint | S | Proof only | 3,041,506 | First Kennedy proofs struck in San Francisco; sold in five-coin proof sets at $5 each |
| Philadelphia Mint | — | None | 0 | No 1968 half dollars struck at Philadelphia |
| Total | 249,993,436 | All issues contain 40% silver (inner core 79% Cu/21% Ag; outer layers 80% Ag/20% Cu) | ||
Kennedy's hair details are flat and merged at the high points. The inscriptions remain legible but rim definition is noticeably reduced. Value tracks silver melt. Both the cheek and hair above the ear show smooth, featureless surfaces from wear. The reverse eagle's breast feathers are partially or fully merged.
High points show light to moderate wear but most hair strand detail is still visible. Some original luster may survive in protected areas around the lettering. The eagle's feathers remain distinct. AU examples retain most luster with wear confined to the highest points only—Kennedy's cheek and temple.
No wear, but contact marks from bag handling are present and drive grade. MS-60–62 coins carry heavy bag marks. MS-63–64 examples have fewer marks. MS-65 requires minimal contact marks with full luster and above-average eye appeal. Kennedy's cheek is the primary grading focal point—marks here are most penalized.
MS-66 coins are scarce (around 1,000 known per PCGS data) and command $60–$160. MS-67 is a true condition rarity with fewer than 50 certified by PCGS—none higher. The MS-67+ auction record is $7,500. At this level the coin must display exceptional strike sharpness, undisturbed original luster, and near-perfect surfaces throughout.
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The right selling channel depends on your coin's value tier. A circulated silver coin is best sold quickly as bullion; an MS-67 or error variety needs expert marketing to reach buyers willing to pay the premium.
Best for: MS-66+, DCAM proofs, confirmed error varieties, and any coin potentially worth over $500. These firms reach the deepest pool of serious Kennedy half dollar collectors globally. Stack's Bowers holds the current record sale of $24,000 for the PR-70 DCAM. Expect 15–20% seller's commission but maximum competitive bidding.
Best for: MS-63–MS-65 business strikes, standard proofs, and lower-tier error coins. Research recent sold prices for 1968-D half dollars on eBay before setting your starting bid—completed listings show actual clearing prices, not asking prices. Good photography is essential; buyers are sophisticated.
Best for: Quick liquidity on silver melt coins and common grades. Expect offers of 60–75% of retail value on circulated examples, and slightly more on silver-priced coins when spot is high. Bring comparable eBay sold listings to support your asking price. Shops are less useful for high-grade or error specimens where competition is limited locally.
Best for: Silver-content sales and circulated examples where you want to avoid eBay fees. The r/Silverbugs community is active for 40% silver Kennedy halves priced near spot. r/CoinSales and r/CoinsForSale allow direct transactions. Always insist on PayPal Goods & Services for buyer/seller protection, and include detailed photos in your listing post.
A circulated 1968-D half dollar is worth roughly $6–$12 based on its 40% silver melt value. Uncirculated examples range from about $17 to $48 in typical MS grades. The 1968-S Proof starts around $18 in PR-65 and climbs dramatically—a perfect PR-70 Deep Cameo specimen sold for $24,000 at Stack's Bowers in 2023. Error coins and conditional rarities (MS-67+) command their own strong premiums.
Yes. All 1968 Kennedy half dollars—both the Denver business strikes and the San Francisco proofs—contain 40% silver. The coin has a three-layer construction: an inner core of roughly 79% copper and 21% silver, bonded between outer layers of 80% silver and 20% copper. The total weight is 11.50 grams with a diameter of 30.61 mm. This silver content gives every 1968 half dollar a bullion floor value above face value.
Starting in 1968, the mint mark moved from the reverse (its 1964 position) to the obverse. Look just below the truncation of Kennedy's neck, centered above the '9' and '6' of the date. A 'D' indicates Denver (business strike), while an 'S' indicates San Francisco (proof only). There are no 1968 half dollars without a mint mark—Philadelphia did not strike this denomination that year. Any coin appearing to lack a mark warrants careful examination.
The 1968-S Proof was the first Kennedy half dollar proof struck at the San Francisco Mint and the first proof Kennedy half since 1964. Value is driven primarily by cameo contrast. Standard proofs in PR-67 trade around $20–$40. Cameo (CAM) examples command more, while Deep Cameo (DCAM) specimens—featuring bold frosted devices against mirror fields—are significantly scarcer. Only 16 examples have been certified PR-70 DCAM by PCGS, with the record sale reaching $24,000.
The 1968-S Inverted Mintmark (PCGS FS-511) is a proof variety where a mint technician accidentally used an old 1940s-era 'S' punch oriented upside-down. On normal coins the smaller loop of the S faces upward; on this variety the larger bulb-shaped loop is on top. Discovered in 2018 by Florida dealer Bob Ryan, it is listed in the Cherrypicker's Guide. PR-66 examples have sold for around $400–$795. Look at the S mint mark through a 10× loupe to spot the orientation difference.
The MS-67 grade is a major condition rarity for the 1968-D issue. PCGS and NGC together have certified fewer than 50 specimens at this grade, and none have been certified higher by either service. Heavy bag handling at the Denver Mint left most uncirculated examples with distracting contact marks on Kennedy's cheek and the hair above his ear, making true gem surfaces extremely hard to achieve. An MS-67+ example sold for $7,500 in 2019.
Key errors to hunt: (1) Inverted Mintmark FS-511—upside-down S punch on 1968-S proofs; (2) Doubled Die Obverse FS-101—visible tripling on 'IN GOD WE TRUST' on 1968-D; (3) Doubled Die Reverse FS-801 on 1968-S proofs, with PR-68 examples selling over $3,800; (4) Off-Center strikes—value rises sharply when date remains visible; (5) Wrong Planchet errors—a PR-67 example struck on a quarter planchet sold for over $5,000. Professional certification is recommended for any suspected major error.
Cleaned coins show telltale hairline scratches across the fields, visible under a 10× loupe held at a low angle against a bright light source. Harsh cleaning removes the original luster 'cartwheel' effect—a genuine uncirculated coin rotated under light shows flowing luster that radiates from the center. Cleaned coins look flat or washed out by comparison. Never clean a coin; even gentle polishing destroys numismatic value. Professional graders automatically designate cleaned coins as 'Details,' sharply reducing market value.
For high-grade or error examples, Heritage Auctions or Stack's Bowers reach the deepest collector pools and typically bring the strongest prices. eBay is effective for mid-tier coins if you have clear photos and an accurate description. Local coin shops offer quick cash but usually pay 50–70% of retail. Reddit's r/coins and r/Silverbugs communities work well for silver-content sales. For any coin potentially worth over $50, professional grading from PCGS or NGC before selling is strongly recommended.
CAM (Cameo) describes proof coins where the raised design elements show some degree of frosty contrast against mirror-like fields. DCAM (Deep Cameo) indicates the strongest possible contrast—Kennedy's portrait appears nearly white-frosted against a glass-like background, creating an almost three-dimensional visual effect. Both designations require being awarded by PCGS or NGC. For the 1968-S, DCAM coins command a 4–6× price premium over standard proof examples at the same numerical grade, and PR-70 DCAM examples are genuinely rare.