2010-D Mount Hood, Satin Finish Proof

The 2010-D Mount Hood Satin Finish quarter closes out the Denver Satin Finish productions in the 2010 Uncirculated Coin Set, the last annual Mint Set ever issued with the Satin treatment. Phebe Hemphill's reflective composition of Mount Hood mirrored in Lost Lake was struck at Denver on dies prepared specifically for the Satin program: lightly bead-blasted to produce the uniformly fine matte surface that defined every Mint Set coin from 2005 forward. After this issue, the Mint reverted to standard business-strike production for its Uncirculated Coin Sets, making the 2010 Denver Satin entries the final pieces of a six-year program. The 583,897 mintage matches total 2010 Mint Set sales exactly, since each set contained the full Philadelphia-and-Denver pair of every 2010 ATB design.

Distinguishing the Satin variant from a standard 2010-D Mount Hood business strike comes down to surface texture under direct light. The Satin issue shows a uniformly fine matte sheen across the mountain profile, the lake reflection, and the surrounding fields, with no cartwheel luster sweep and no proof-style mirror brilliance. The Lost Lake reflection in particular, which can flatten on late-die-state business strikes, holds its detail well under the satin die treatment because both the original relief and the bead-blasted surface texture remain consistent across the production run. PCGS (the Professional Coin Grading Service) and NGC slab the issue under the SP (Specimen) prefix with Satin Finish on the label. Most ungraded examples remain inside their original Mint Set lens packaging.

As a collecting target, the 2010-D Mount Hood Satin Finish is a Regular-classification entry, well-supplied in its production niche and the closing piece of both the 2010 ATB launch year and the broader 2005-2010 Satin Finish program. Set builders who pursue the Satin variants alongside the standard circulation strikes typically buy the 2010 P and D Satin pairs together as a tier purchase. SP69 and SP70 examples populate the slabbed market in adequate numbers; SP70 commands a modest top-grade premium that has held steady since the program closed. For the broader story of the ATB program and the 2005-2010 Satin Finish era, see the Washington ATB series history.