Coin Highlights
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Date: 1990
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Denomination: 50 Cents (Kennedy Half Dollar)
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Mint: San Francisco – “S” mintmark
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Finish: Gem Proof (deep mirrors, frosted devices)
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Composition: Copper–nickel clad (91.67% copper, 8.33% nickel)
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Weight: 11.34 g
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Diameter: 30.6 mm
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Mintage (Proof): 3,299,559 pieces
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Obverse: Portrait of President John F. Kennedy by Gilroy Roberts
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Reverse: Heraldic eagle with shield, olive branch, and arrows by Frank Gasparro
Historical Significance
By 1990, the Kennedy half dollar had firmly transitioned to copper-nickel clad for both circulation and proof coinage. The 1990-S Proof continues the long-running tribute to President Kennedy and reflects the U.S. Mint’s improving proof quality of the late 1980s and early 1990s, with more consistent mirror fields and frosted relief compared to earlier years. Notably, the Mint did not issue a silver proof half dollar in 1990; silver proofs returned only in 1992-S as part of the silver proof sets. Wikipedia+1
Collectibility
Gem Proof 1990-S Kennedys are popular with date-and-mint collectors and with modern proof set builders. With a proof mintage just over 3.2 million, they are accessible yet still desirable in attractive, spot-free condition. This coin is an excellent choice for completing a 1990 proof set by type, building a run of San Francisco proof Kennedys, or offering an affordable, high-eye-appeal proof half dollar to newer collectors.
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