2012-S Proof

San Francisco delivered 794,002 standard cupronickel-clad proof Roosevelt dimes in 2012 for inclusion in the regular annual proof set, a 53 percent pullback from the 1.67-million 2011-S clad figure as proof-set subscriptions stepped down from the 2011 rebound. The 2012 proof set carried the America the Beautiful Quarters program's third-year five-coin set, the Native American Dollar with that year's reverse rotation, the Lincoln Shield cent, the Westward Journey nickel obverse, and the Roosevelt dime in a single package. The S mintmark sat sharp above the date, dies were hand-polished to mirror finish, and the clad planchet was struck at higher pressure on a slower press to produce the squared rims and frosted devices that distinguish proof from circulation finish.

Authentication on a 2012-S clad proof rests on the standard finish diagnostics. Mirrored fields under 10x magnification show the deep reflective surface produced by hand-polished dies, the rim profile runs at a sharp ninety-degree transition to the field rather than the rounded business-strike profile, and frosted devices appear on examples that earn Cameo and Deep Cameo designations from PCGS and NGC. Cameo, the grading designation that mirrored fields and frosted relief show clear contrast, and Deep Cameo, the same effect at heavier frost depth, carry the premium pricing at PR69 and PR70. Weight should read 2.268 grams on a calibrated scale; the 2.50-gram silver-proof companion is the principal composition-level distinction between this issue and the 2012-S Silver Proof, and the edge view will show the dark copper-core sandwich rather than the solid silver-color profile of the silver version.

The 2012-S clad sits at the lower edge of the early-2010s clad-proof Roosevelt mintage range, with the 794,002 figure marking a step-down from the 2011 figure. PR69 DCAM is available at modest price levels, and PR70 DCAM forms the condition-rarity step where PCGS and NGC populations thin to registry-relevant levels. The reduced mintage relative to surrounding years carries a slight premium reflection at the registry tier. Most surviving examples remain in original 2012 proof-set packaging. Collector demand concentrates on the PR70 DCAM tier and on full Cameo-DCAM date sets. For the early-2010s San Francisco proof program and the 2012 subscription step-down, see the Roosevelt Dime series history.