2008-S Oklahoma, Silver Proof

2026-03-04, San Francisco struck 1,192,908 Oklahoma silver proofs in 2008 for the Silver Proof Set, the collector-tier companion to the clad proof. Phebe Hemphill's reverse pairs a scissor-tailed flycatcher in flight above a field of Indian blanket, the state wildflower, its long forked tail trailing in a single graceful arc. The inscription "Labor Omnia Vincit", "Labor Conquers All Things," adopted as the state motto in 1907, anchors the upper field, and 1907 records Oklahoma's admission as the 46th state. On a 90% silver planchet, the layered tail feathers, the petal texture of the blanket flowers, and the fine engraving of the motto gain a precision the clad cannot match, the bright white metal lending the prairie scene a naturalist clarity against the deeply mirrored fields.

Authenticating a 2008-S Oklahoma Silver Proof begins at the scale. A genuine silver example weighs 6.25 grams against the 5.67-gram clad proof, and that 0.58-gram differential is the single most efficient diagnostic in the collector's toolkit. The 90% silver, 10% copper composition produces a silvery-white reflective surface noticeably brighter than the slightly grayer clad cast, and viewing the 24.3mm edge straight on reveals a solid silver color rather than the copper-cored sandwich stripe of clad coinage. Squared, sharp rims and heavily frosted Cameo or Deep Cameo devices set against deeply mirrored fields complete the visual signature. Examine the forked tail feathers of the flycatcher, the central disks of the Indian blanket flowers, and the fine letters of the Latin motto under angled light for the heavy frost contrast that defines a properly struck silver proof.

None of the 2008 Oklahoma silver proofs entered circulation; all were sold through U.S. Mint Silver Proof Set packaging, and survival rates remain extremely high. Modern market value reflects both the silver bullion content and the proof finish, with Deep Cameo and PR70 examples carrying the strongest premiums. The flycatcher subject draws topical interest from prairie-state and natural-history collectors, who tend to pair the Oklahoma issue with the 2008 New Mexico Zia and Arizona Grand Canyon as the final-year southwestern run on the silver tier. For more, see the 50 State Quarters series history.