1956 Proof

The 1956 proof Roosevelt dime is the Philadelphia silver proof issued through the annual Proof Set program, with a mintage of 669,384 pieces. Proof Set sales had grown substantially since the 1950 restart, and the 1956 figure represents a clear step up from the 378,200 mintage of the 1955 proof, reflecting the rising mid-decade collector appetite that would push proof distribution to seven figures by 1957. The 1956 proof was packaged in flat cellophane sleeves within a cardboard envelope alongside the cent, nickel, quarter, and half dollar of the year, the same five-coin distribution vehicle the Mint had used since 1950. The coin carries John R. Sinnock's standard 1946 design, with the FDR portrait on the obverse and the torch with olive and oak branches on the reverse, struck from polished dies on polished planchets at Philadelphia. The "JS" initials at the truncation of the bust appear with sharper definition than on circulation work thanks to the careful preparation of proof dies.

The 1956 proof follows the silver-era specifications: 2.5 grams, 17.9 millimeters, 90% silver and 10% copper, reeded edge. Authentication of a 1956 proof rests on distinguishing genuine proof characteristics from prooflike business strikes. True proofs show squared, sharply defined rims with the small step where the rim meets the field, fully mirrored fields with consistent reflectivity at every viewing angle, and crisp definition across the torch flame, leaves, letters, and FDR's hair. Cameo contrast on 1956 proofs falls in the transitional die-preparation period of the mid-1950s, where adjustments to the polishing routine reduced the consistency of strong frosted devices on later strikes within a die's working life. Cameo (CAM) populations are modest and Deep Cameo (DCAM) populations are genuinely scarce, with the strongest-contrast examples concentrated among the earliest impressions from each newly polished die pair.

Survivor distribution covers PR60 through PR68, with PR66 and PR67 the most heavily traded grades. The DCAM premium widens sharply at PR67 and finer because of the limited supply of strong-contrast survivors. Hairlines from old wipes and small contact marks from set storage are the typical impairments below PR65. For broader context, see the Roosevelt Dime series history.