2007-D Montana, Satin Finish Proof

The 2007-D Montana Satin Finish Proof was Denver's contribution to that year's Annual Uncirculated Coin Set, paired one-for-one with the Philadelphia issue across every collector subscription. Don Everhart's reverse places a bleached bison skull against native grass in the foreground, with the Rocky Mountain Front silhouetted across the horizon and the state legend "Big Sky Country" arched above the central scene. Released into circulation on January 29, 2007, the design was the first of the year's five Western quarters; satin examples are the Denver Mint's parallel collector version of the same composition, distributed only inside the Mint Set rather than through banks. Annual per-mint mintage finished at 895,628 pieces, a modest recovery from 2006's 847,361 figure and a sign that collector subscriptions had stabilized after the format's second-year dip.

The authentication path runs through surface texture rather than detail sharpness. Genuine satin specimens show a uniform matte sheen across both the prairie and the skull, with no cartwheel luster and no mirror-and-cameo contrast. The matte effect comes from specially treated dies at Denver, not from polishing or post-strike treatment, and that uniformity is the single most reliable tell against both a circulation roll quarter and a San Francisco mirror proof. Composition is standard cupronickel-clad, 91.67% copper / 8.33% nickel by total weight, with a 75/25 outer cladding over a pure copper core, at 5.67 grams and 24.3 millimeters, identical to the business strikes leaving Denver the same year. The D mintmark sits above Washington's queue on the obverse; no S satin variants exist, since San Francisco produced only mirrored proofs in this era. PCGS and NGC use SP (Specimen) or SMS designations rather than PR, a label distinction worth noting when reviewing certified slabs.

Because none of these coins entered circulation, the original Denver striking survives intact on examples pulled from sealed Mint Sets, and most graded pieces fall into the SP67 to SP69 band with SP70 examples plentiful enough that top-pop premiums stay modest. For Everhart's full statehood portfolio and the broader 2007 release run, see the 50 State Quarters series history.