1985-S Proof

The 1985-S proof Roosevelt dime is the standard San Francisco proof issue for the year, struck to 3,362,821 pieces and distributed through Mint-packaged proof sets containing the cent, nickel, dime, quarter, half dollar, and Susan B. Anthony dollar. The 1985-S mintage represents a modest increase from the prior year and continues the established San Francisco proof methodology of polished planchets, frosted devices, and multiple slow strikes at elevated pressure. The S mintmark was properly applied without any varietal complications during 1985, and no Type 1 / Type 2 mintmark transition affected this year's proof production, the redesigned Clear-S punch remained the production standard across the entire proof program.

Authentication on the 1985-S checks the S mintmark for sharpness and proper Clear-S placement above the date, the mirror finish across the fields, and the frosted contrast on the portrait and the torch reverse. The 2.27 gram clad weight standard and 17.9 millimeter diameter apply, and the squared rims and acute device-to-field transitions distinguish genuine proof strikes from any prooflike circulation coin. PCGS and NGC designate Deep Cameo (DCAM) when frost contrast is strong across both sides. The standard proof certification grade ladder runs from PR65 up through PR70 DCAM, and Full Bands designation applies on the torch reverse to coins meeting the strike-quality threshold.

Sourcing the 1985-S in PR68 DCAM is straightforward through broken Mint proof sets and dealer inventory at modest premium over set value. PR69 DCAM is the typical specialist baseline and trades at higher but still accessible prices. The meaningful price tier is PR70 DCAM, where the certified population is smaller and registry-set competition concentrates demand on the absolute-finest examples. The 1985-S has no major varieties documented and sits as a standard collector-tier entry across all proof-grade levels, providing a routine S-mint proof representative for the mid-1980s. For the broader context of mid-1980s San Francisco proof production, see the Roosevelt Dime series history.