Kennedy Half Dollars (1964–Present)

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 Proof dies were then 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. Rick Tomaska estimates that about 100,000 Accented Hair Proofs were struck from the original 3,950,762 total Proof mintage. They carry modest premiums in middle Proof grades; a PCGS Proof 68 Deep Cameo realized $7,200 at Heritage on May 4, 2023, and a Proof 69 Deep Cameo realized $46,800 at Heritage on January 11, 2024.²

Three Metallic Eras, Each Driven by the Price of Silver

The Kennedy half dollar has been struck for circulation in three compositions since 1964, and the composition decides how much silver a given coin holds.

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 kept them as memorials to the president instead of spending them, and although Philadelphia struck 273,304,004 and Denver 156,205,446 for circulation, the coin 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 core of about 79% copper and 21% silver, 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. Its mintage stayed low because the Mint did not announce that no 1970 half dollars would be struck for circulation 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. The base metal half dollar never circulated widely, and demand declined steadily through the 1970s and 1980s. Casinos, where the coin had been commonly used, increasingly switched to fifty-cent chips in its place.⁵

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

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; the last silver halves before that were the 40% silver Bicentennial collector pieces struck in 1975 and 1976. 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 0.4074 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, 12.685 grams for .999 fine) distinguishes it from the clad standard Proof at 11.34 grams.⁶

Two special precious-metal issues fall outside the regular annual Proof series and the silver Proof set program. In 1975 and 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 Kennedy 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 struck in 1975 and 1976, the standard Kennedy reverse was replaced by Huntington's Independence Hall design, and the obverse carried the dual date 1776-1976. No half dollar carries 1975 or 1976 as a single date. Clad Bicentennial halves were produced in enormous quantities: 234,308,000 at Philadelphia and 287,565,248 at Denver for circulation, plus 7,059,099 clad Proofs at San Francisco. 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. In 1964 the mint mark appeared on the reverse, below the eagle's claw holding the olive branch, and coins dated 1965 through 1967 carry no mint mark at all. 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. The 1965-1967 omission covered circulating coins and Special Mint Set pieces, a policy intended to discourage hoarding by making it impossible for collectors to tell which mint struck a coin.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 6.1 million per mint per year, dramatically lower than the hundreds of millions struck annually during the series' circulation peak, yet these dates are not scarce. Because NIFC coins were sold to collectors at a premium, most of the 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. At 2,890,758 each, they have the lowest pre-2002 business-strike mintages after the 1970-D, though their collecting premiums in lower Mint State grades are modest because sets were saved in substantial numbers. After the collector-only years of 2002 through 2020, half dollars were struck for circulation again from 2021.¹¹

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