How to Identify the 1965 Kennedy Half Dollar (40% silver)

What It Is

The 1965 Kennedy half dollar marks the year the U.S. Mint reduced the coin's silver content from the 90% silver used in 1964 to a 40% silver clad composition, a response to rising silver prices and dwindling silver reserves. The design itself, honoring President John F. Kennedy after his assassination, remained the same as the debut 1964 issue, and the 40% silver formula continued in use through 1970 before switching to the copper-nickel clad composition still used today.

Obverse Design & Inscriptions

The obverse shows a left-facing portrait of President John F. Kennedy, designed by chief engraver Gilroy Roberts, with "LIBERTY" arched above and "IN GOD WE TRUST" near the portrait's truncation, along with the date below.

Reverse Design & Inscriptions

The reverse depicts the Presidential Seal-inspired heraldic eagle with outstretched wings, a shield on its breast, clutching an olive branch and arrows, with stars above and "UNITED STATES OF AMERICA," "E PLURIBUS UNUM," and "HALF DOLLAR" inscribed around the border.

Size, Weight, Metal, and Edge

The 1965 half dollar measures 30.6mm in diameter, matching standard half dollar size, but its composition changed to a clad structure: outer layers of 80% silver and 20% copper bonded to a core of 20.9% silver and 79.1% copper, averaging 40% silver overall, with a total weight of 11.5 grams (lighter than the 12.5-gram 90% silver 1964 issue). The edge is reeded.

Mint Marks and Where to Find Them

1965 half dollars were struck without mint marks, as the U.S. Mint temporarily suspended mint marks from 1965 through 1967 to discourage coin hoarding amid the silver shortage, so all genuine 1965 halves lack a "D" or "S" mint mark regardless of which facility produced them.

Telling It Apart From Similar Coins

The clearest way to distinguish a 1965 40% silver half from the 1964 90% silver version is by weight (11.5 grams versus 12.5 grams) and by examining the edge, where the 40% silver clad coin shows a visible thin copper-colored stripe sandwiched between the outer silver layers, unlike the solid silver-gray edge of the 1964 coin. It should also not be confused with post-1970 copper-nickel clad halves, which show a much more prominent copper stripe and contain no silver at all.

Judging Condition at a Glance

Grade is assessed by the sharpness of Kennedy's hair detail and the texture on the eagle's feathers, which are the first areas to show wear. Because half dollars saw less circulation than smaller denominations even in this era, many surviving examples remain in relatively higher grades.

Authenticity Red Flags

Because of its silver content, watch for coins that have been artificially cleaned or dipped to look shinier, which can reduce numismatic value, as well as pieces with a suspiciously uniform gray edge lacking the expected copper-toned stripe of genuine 40% silver clad construction. A weight noticeably different from 11.5 grams is also a red flag for an altered or counterfeit piece, and a simple kitchen scale accurate to a tenth of a gram is usually sufficient to check this at home.