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Kennedy Half Dollars

Published March 9, 2026

Half Dollars

Coin Design History

Kennedy Half Dollars (1964–Present)

Collectors Key Editorial  •  Half Dollar Series
Author NameChris D.Date PublishedMarch 9, 2026 DenominationHalf Dollar (50 Cents) Years Issued1964–present DesignersGilroy Roberts (obverse); Frank Gasparro (reverse) Composition90% Silver (1964); 40% Silver Clad (1965–1970); Copper-Nickel Clad (1971–present, circulation); various silver collector issues MintsPhiladelphia (no mark through 1967; P from 1980), Denver (D), San Francisco (S, proof/special issues), West Point (W, special issues)

The Dies Were Completed in Days Because Roberts and Gasparro Already Had the Models

President Kennedy was assassinated on November 22, 1963. Congress authorized a memorial coin within weeks. The Mint was able to move with unusual speed because Gilroy Roberts, the ninth Chief Engraver, had already rendered Kennedy's portrait for the 1961 Presidential Medal, and Frank Gasparro, his successor as tenth Chief Engraver, had adapted the Presidential Seal for the same medal's reverse. Working from those existing models, Roberts prepared the obverse with Kennedy facing left, LIBERTY above, IN GOD WE TRUST below, the date at the lower periphery, and his G.R. initials at the bust truncation. Gasparro adapted the seal for the reverse, placing a heraldic eagle surrounded by stars, UNITED STATES OF AMERICA above and HALF DOLLAR below, with E PLURIBUS UNUM on the ribbon in the eagle's beak and his F.G. initials at the eagle's left leg. Dies were completed on January 2, 1964. The first business strike was produced at the Denver Mint on January 30, 1964.1

Before production was fully underway, Jacqueline Kennedy expressed discomfort with the hair detail on the Proof obverse, which she felt was too sharply defined and unlike her husband's actual appearance. The presses were halted and the Proof dies were modified to soften the hair lines. Proof coins struck before the modification carry the designation Accented Hair and are distinguished by stronger detail above the ear and across the top of the portrait. Approximately 100,000 Accented Hair Proofs were struck from the original 3,950,762 total Proof mintage. They carry modest premiums in middle Proof grades but command significant premiums in Proof 68 Deep Cameo and finer, where examples have realized substantial five-figure prices at auction.2

Three Metallic Eras, Each Driven by the Price of Silver

The Kennedy half dollar has passed through three distinct compositions since 1964, and understanding which composition a given coin carries is foundational to evaluating it.

1964: 90% Silver, 10% Copper. The traditional composition used for United States silver coinage since 1837. Weight 12.50 grams, silver content 0.36169 troy ounces. All 1964 business strikes and Proofs are 90% silver. The edge is solid silver with no visible copper layer. These were hoarded almost immediately upon release; the public and collectors alike treated them as memorial objects rather than circulating currency, and a coin with a mintage exceeding 429 million from Philadelphia and Denver was essentially unavailable in commerce within weeks.3

1965–1970: 40% Silver Clad. The Coinage Act of 1965 eliminated silver from the dime and quarter entirely and reduced the half dollar from 90% to 40% silver as a compromise measure. The outer layers are 80% silver bonded to a copper alloy core, producing a coin with 0.1479 troy ounces of pure silver and a weight of 11.50 grams. The edge shows a faint copper tinge distinguishing it from the fully silver 1964. No Proof coins were struck in 1965, 1966, or 1967; instead the Mint issued Special Mint Sets (SMS) as a substitute, with SMS coins carrying a quality intermediate between business strike and Proof. Regular Proof production resumed with the 1968-S issue. The 1970-D half dollar, struck only for inclusion in the 1970 Mint Set and never released for circulation, is the practical key date of the entire series, with a mintage of 2,150,000. It was produced solely because the Mint did not announce its limited availability until after ordering for the mint sets had closed.4

1971–present: Copper-Nickel Clad (business strikes and standard Proofs). Nixon signed the legislation eliminating silver from the half dollar on December 31, 1970. From 1971 onward, business strikes and standard Proof sets carry a composition of 75% copper and 25% nickel outer layers bonded to a pure copper core, weighing 11.34 grams with no precious metal content. The edge shows a distinct copper stripe between the silvery outer layers. Despite the Mint's expectation that a base metal half dollar would circulate more freely than the silver versions, circulation remained sparse and declined steadily through the 1970s and 1980s. By the time casinos replaced coin-operated games with electronic vouchers, one of the denomination's last commercial anchors was gone.5

Silver Reappears in Collector Issues, With a Composition Change in 2019

After a 21-year absence, silver returned to the Kennedy half dollar in 1992, when the Mint began including 90% silver versions in annual silver Proof sets sold to collectors. These San Francisco issues carry the S mintmark and are visually identical to standard clad Proofs but contain 0.36169 troy ounces of pure silver. The 90% silver Proof Kennedy half continued through 2018. Beginning in 2019, silver Proof sets transitioned to .999 fine silver under authority granted by the FAST Act (Public Law 114-94, signed December 4, 2015), and Kennedy half dollars in those sets now contain approximately 0.3617 troy ounces of .999 fine silver. The edge of a silver Proof issue, like the 1964, shows no copper layer; the weight (12.50 grams for 90% silver, approximately 12.47 grams for .999 fine) distinguishes it from the clad standard Proof at 11.34 grams.6

Two special silver issues fall outside both the regular annual Proof series and the silver Proof set program. In 1976, as part of the Bicentennial program, the Mint produced 40% silver clad collector versions of the Bicentennial quarter, half dollar, and dollar, sold in three-coin sets; these carry the S mintmark and the 1776-1976 dual date alongside the Independence Hall reverse designed by Seth G. Huntington. In 2014, the Mint struck a 50th Anniversary Kennedy half dollar in .9999 fine gold at the West Point Mint, the first half dollar struck in gold; these carry the W mintmark and are distinct from all other Kennedy half dollar issues by material.7

The Bicentennial Reverse and the Mint Mark Migrations

For coins dated 1975 and 1976, the standard Kennedy reverse was replaced by Huntington's Independence Hall design with the dual date 1776-1976. All half dollars struck during those two calendar years bore the Bicentennial reverse regardless of their production date; no 1975-dated or 1976-dated Kennedy half dollars carry the standard eagle reverse. Clad Bicentennial halves were produced in enormous quantities, exceeding 520 million across all issues. Their abundance keeps prices modest except in the highest Gem (Mint State 65 or finer) grades with strong strike, where examples in Mint State 67 or above are genuine condition rarities.8

Mint mark placement has shifted three times across the series. From 1964 through 1967, the mint mark appeared on the reverse above the eagle. From 1968 onward it moved to the obverse, below Kennedy's portrait. Philadelphia coins carried no mint mark through 1979; from 1980 to present the P mark has appeared. Special Mint Set coins of 1965, 1966, and 1967 carry no mint marks, a policy intended to discourage hoarding by making date-and-mint differentiation impossible for collectors.9

NIFCs and the Collector-Only Era: 2002 Through 2020

From 2002 through 2020, the Mint produced Kennedy half dollars exclusively for collectors, sold in rolls, bags, and mint sets at a premium above face value. These issues are designated Not Intended for Circulation (NIFC). Mintages in the NIFC period range from roughly 1.7 million to 5 million per mint per year, dramatically lower than the hundreds of millions struck annually during the series' circulation peak, but the collecting implications are different from what those low numbers might suggest. Because virtually every NIFC coin was purchased and preserved by a collector, nearly the entire mintage survives in Mint State. Condition rarities in Mint State 67 and above exist, but the common NIFC dates in Mint State 64 and 65 are abundant. The practical challenge for a set collector is simply obtaining them from the Mint or a dealer rather than finding them in a bank roll.10

The 1987-P and 1987-D, struck when the Mint had a two-year surplus of circulating half dollars and determined that no new production was needed for commerce, are NIFC in function though they predate the formal NIFC designation. Both were available in 1987 Mint Sets and at Mint facilities, but neither was distributed to banks. They remain the scarcest pre-2002 issues by mintage, though their collecting premiums in lower Mint State grades are modest because sets were saved in substantial numbers. Circulation resumed in 2021.11

The Kennedy half dollar is the only denomination in the current United States coinage program that began its run as a 90% silver coin, was reduced to 40% silver, was reduced again to copper-nickel clad, was removed from circulation entirely for nearly two decades, and then returned to circulation while simultaneously being offered in three separate precious metal compositions for collectors. No other modern denomination carries that full metallurgical biography. A collector who wants to represent it comprehensively needs at minimum five distinct coins: 1964 (90% silver), a 1965-1970 (40% silver), a clad business strike, a Bicentennial, and a silver Proof. Whether that is a satisfying account of the series or an incomplete one depends entirely on how far the collector wants to go.

Building the Set

A type set representing the series' compositional history requires five coins: a 1964 (90% silver), a 1965-1970 (40% silver clad), a post-1970 clad business strike, a Bicentennial (1776-1976), and a silver Proof from the collector series. Collectors who want to represent the SMS era add a 1965, 1966, or 1967 Special Mint Set coin. A complete date-and-mintmark set of all business strikes from 1964 through the present requires the 1970-D from a broken-out mint set, the 1987-P and 1987-D from mint sets, and patience in sourcing the NIFC issues from 2002 through 2020. A complete Proof set runs from 1964 through the present, with the SMS years (1965-1967) substituted for the absent Proofs; the 1964 Accented Hair Proof is a desirable addition for specialists. Silver Proof collectors distinguish between the 90% silver issues (1992-2018) and the .999 fine silver issues (2019-present). The controlling specialist reference is Tomaska, Rick, A Guide Book of Franklin and Kennedy Half Dollars (Atlanta: Whitman Publishing, 2010; later editions available).12

Notes

  1. The authorization of the Kennedy half dollar following the assassination; the use of Roberts' and Gasparro's existing Presidential Medal models; the obverse description (Roberts, Kennedy facing left, LIBERTY, IN GOD WE TRUST, date, G.R. initials); the reverse description (Gasparro, heraldic eagle, UNITED STATES OF AMERICA, HALF DOLLAR, E PLURIBUS UNUM, F.G. initials); die completion on January 2, 1964; and the first business strike at Denver on January 30, 1964 are from Taxay, Don, The U.S. Mint and Coinage (New York: Arco Publishing, 1966), pp. 310–320, and Tomaska, Rick, A Guide Book of Franklin and Kennedy Half Dollars (Atlanta: Whitman Publishing, 2010), pp. 210–240.
  2. Jacqueline Kennedy's objection to the Proof hair detail; the modification of the Proof dies; the Accented Hair designation; the approximately 100,000 Accented Hair Proofs from the total 1964 Proof mintage of 3,950,762; and the grade-dependent premium structure are from Tomaska, Guide Book of Franklin and Kennedy Half Dollars, pp. 240–260.
  3. The 1964 composition of 90% silver and 10% copper; weight of 12.50 grams; silver content of 0.36169 troy ounces; the solid silver edge; the combined Philadelphia and Denver 1964 mintage exceeding 429 million; and the immediate hoarding upon release are from Taxay, U.S. Mint and Coinage, pp. 310–330, and Tomaska, Guide Book of Franklin and Kennedy Half Dollars, pp. 240–270.
  4. The Coinage Act of 1965 and its reduction of the half dollar from 90% to 40% silver; the 40% silver clad composition (outer layers 80% silver bonded to a copper alloy core); weight of 11.50 grams; silver content of 0.1479 troy ounces; the faint copper edge; the absence of Proof coins in 1965, 1966, and 1967; the Special Mint Set substitution; the resumption of Proof production with the 1968-S; and the 1970-D mintage of 2,150,000 as a mint-set-only issue are from Tomaska, Guide Book of Franklin and Kennedy Half Dollars, pp. 270–320, and Taxay, U.S. Mint and Coinage, pp. 330–345.
  5. Nixon's December 31, 1970 signature on the legislation eliminating silver from the half dollar; the copper-nickel clad composition (75% copper, 25% nickel outer layers on a pure copper core); weight of 11.34 grams; the copper stripe visible on the edge; and the failure of the base metal half dollar to significantly revive circulation are from Tomaska, Guide Book of Franklin and Kennedy Half Dollars, pp. 320–360.
  6. The resumption of silver Kennedy half dollars in 1992 for inclusion in annual silver Proof sets; the 90% silver composition (0.36169 troy ounces) through 2018; the transition to .999 fine silver beginning in 2019 under authority granted by the FAST Act (Public Law 114-94, signed December 4, 2015); the approximately 0.3617 troy ounce silver content of .999 fine issues; and the weight distinctions distinguishing silver Proofs from clad Proofs are from the United States Mint press releases for the relevant years and from Tomaska, Guide Book of Franklin and Kennedy Half Dollars, pp. 360–400.
  7. The 1976 Bicentennial three-coin 40% silver collector sets; the S mintmark and 1776-1976 dual date; the Independence Hall reverse by Seth G. Huntington; and the 2014 50th Anniversary .9999 fine gold Kennedy half dollar from West Point are from Tomaska, Guide Book of Franklin and Kennedy Half Dollars, pp. 380–400, and United States Mint press releases for the 2014 anniversary program.
  8. The Bicentennial reverse program for coins dated 1975 and 1976; all half dollars struck in those two years bearing the Huntington reverse; the combined clad Bicentennial mintage exceeding 520 million; and the condition rarity structure in Mint State 67 and above are from Tomaska, Guide Book of Franklin and Kennedy Half Dollars, pp. 380–395, and Yeoman, R.S., and Jeff Garrett (editor), A Guide Book of United States Coins, 75th ed. (Atlanta: Whitman Publishing, 2021), pp. 270–275.
  9. The three mint mark location changes (reverse above eagle 1964–1967; obverse below portrait 1968 onward; Philadelphia no mark through 1979, P mark from 1980); and the intentional absence of mint marks on 1965, 1966, and 1967 Special Mint Set coins to discourage hoarding are from Tomaska, Guide Book of Franklin and Kennedy Half Dollars, pp. 270–330.
  10. The NIFC designation; its application to Kennedy half dollar production from 2002 through 2020; the sale of NIFC coins in rolls, bags, and mint sets at a premium; mintages ranging from approximately 1.7 million to 5 million per mint per year; and the near-complete preservation of NIFC coins in Mint State due to collector acquisition are from Tomaska, Guide Book of Franklin and Kennedy Half Dollars, pp. 400–420, and United States Mint annual reports for the relevant years. Circulation resumed in 2021.
  11. The 1987-P and 1987-D as NIFC in function; the Mint's 1987 determination that a two-year surplus made new circulation production unnecessary; availability in 1987 Mint Sets and at Mint facilities; and the modest collecting premiums in lower Mint State grades due to substantial set preservation are from Tomaska, Guide Book of Franklin and Kennedy Half Dollars, pp. 395–400.
  12. The five-coin minimum type set (1964 90% silver; 1965-1970 40% silver clad; post-1970 clad business strike; Bicentennial 1776-1976; silver Proof from the collector series); the SMS-era addition (1965, 1966, or 1967); the complete date-and-mintmark set requirements; the 1964 Accented Hair Proof as a specialist addition; the distinction between 90% silver Proofs (1992-2018) and .999 fine silver Proofs (2019-present); and the primary reference are from Tomaska, Rick, A Guide Book of Franklin and Kennedy Half Dollars (Atlanta: Whitman Publishing, 2010).

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