2007-P Idaho, Satin Finish Proof

Idaho's statehood quarter entered circulation on June 4, 2007, the third of five Western designs released that year and the only one to feature a bird of prey as its central element. The 2007-P Idaho Satin Finish Proof was struck at the Philadelphia Mint for the U.S. Mint's Annual Uncirculated Coin Set, the satin format's third year of production. Don Everhart's reverse places a peregrine falcon in profile against a silhouette of the state's geographic outline, with the state motto "Esto Perpetua", "Let It Be Perpetual", arched above the design. The choice of peregrine, a species removed from the federal endangered list in 1999 after decades of recovery, gave Idaho the only raptor in the entire statehood program; satin striking turned the bird's plumage and the state-outline border into a uniform low-luster surface that ordinary cartwheel could not reproduce. Annual mintage settled at 895,628 pieces per mint for the 2007 set, the same allocation given each of the year's five states.

Authentication begins with surface character. Genuine satin examples show a uniform matte sheen across both the falcon's body and the open fields, the product of dies treated with an even acid or sandblast pattern rather than polished to mirror and frost-pickled at the devices. There is no rotating cartwheel luster of the type that travels across an ordinary Philadelphia roll quarter when tilted, and no cameo contrast under the wing or tail. Composition is standard cupronickel-clad, 91.67% copper / 8.33% nickel by total weight, with the outer cladding running 75/25 over a pure copper core, at 5.67 grams and 24.3 millimeters. The P mintmark sits above Washington's queue on the obverse; no S satin variants exist, since San Francisco struck only mirrored proofs that year. PCGS and NGC slab these as SP (Specimen) or SMS rather than PR, a label distinction worth noting when reviewing certified holders.

Because every satin coin shipped only inside Mint Set packaging, the original surface generally survives intact on examples pulled from unbroken sets, and most certified pieces land in the SP67 to SP69 range with SP70s plentiful enough that top-pop premiums stay modest. For Idaho's place among Everhart's statehood reverses, see the 50 State Quarters series history.