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Obverse Description
Portrait of President John F. Kennedy surrounded by the word LIBERTY on the periphery. IN GOD WE TRUST appears left and right of the portrait with the date at the bottom. The mint mark appears under the right of Kennedy's neck.
Reverse Description
The heraldic eagle holding arrows and branch of olive leaves with a full circle of stars around it. UNITED STATES OF AMERICA * HALF DOLLAR surround the periphery.
Catalog Information
GSID:
352028
Designer:
Gilroy Roberts, Frank Gasparro
Obverse Designer:
Gilroy Roberts
Obverse Lettering:
LIBERTY, IN GOD WE TRUST, 1968, S
Reverse Designer:
Frank Gasparro
Reverse Lettering:
UNITED STATES OF AMERICA, HALF DOLLAR
Fineness:
0.4
Weight (gr):
11.5 gr
Weight (oz):
0.475 oz
Precious Metal Weight:
0.1479 oz
Strike Type:
Proof
Diameter:
30.6
Coin Shape:
Round
Edge:
Reeded
Variety:
Inverted Serif S over Knob S
Variety 2:
FS-512
Coin Date:
1968-S
Denomination:
50c
Designation:
PR
Mint Location:
San Francisco
Mint Mark:
S
Mintage:
3,041,506
Coinage Type:
Kennedy half dollar
Coinage Years:
1965-1970
Composition:
40% silver; 60% copper
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To: editor@greysheet.com
Subject: I would like to contribute catalog info to CDN for 1968-S 50c Inverted Serif S over Knob S, FS-512 PR DCAM
Body: Referring page: http://beta.greysheet.com/prices/item/1968-s-50c-kennedy-half-dollar-proof-deep-cameo-surfaces-fs-512/gsid/352028 GSID: 352028 Title: 1968-S 50c Inverted Serif S over Knob S, FS-512 PR DCAM
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Kennedy 50c Clad, 1971- PR [Type]
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Kennedy 50c 99% Silver, 2019- PR [Type]
Worth: $28 – $41
1964 50c PR
Worth: $24 – $2,400
1964 50c Accented Hair PR
Worth: $31 – $800
1968-S 50c PR
Worth: $10 – $26
1969-S 50c PR
Worth: $10 – $26
1970-S 50c PR
Worth: $10 – $26
1971-S 50c PR
Worth: $2 – $13
1972-S 50c PR
Worth: $2 – $14
1973-S 50c PR
Worth: $2 – $9
1974-S 50c PR
Worth: $2 – $9
1976-S 50c Clad PR
Worth: $2 – $125
1976-S 50c Silver PR
Worth: $10 – $50
Greysheet News
The Business of Numismatics: September 2026 Greysheet Editor's Letter
9/7/2026
1893-S Morgan Dollar Realizes $1,181,250 at GreatCollections
Brings More Than 50% Over PCGS Price Guide — a Record for the Date in Gem Mint State.
9/4/2026
Whitman Publications Win Three 2026 NLG Awards
Whitman Brands walked away with a trio of honors during the annual Numismatic Literary Guild awards, held during the American Numismatic Association World's Fair of Money in Pittsburgh.
8/31/2026
Events
Heritage Auctions: US Coins Tuesday & Wednesday Select Auction
Location: Heritage Auctions
Wednesday, July 1, 2026
Heritage Auctions: World & Ancient Coins Wednesday & Thursday Select Auction
Location: Heritage Auctions
Thursday, July 2, 2026
