2006-S Nevada, Silver Proof

2026-02-14, San Francisco struck 1,054,008 Nevada silver proofs in 2006 for the year's Silver Proof Set, the collector-tier companion to the clad proof. Don Everhart's reverse sends three wild mustangs galloping across the foreground, manes and tails streaming, with sagebrush at their hooves and the snowcapped peaks of the Sierra Nevada rising behind them under a rayed sunrise. The inscription "The Silver State" anchors the design, a state nickname whose fit on the silver tier of the program borders on too good to be a coincidence. On a 90% silver planchet, the mustangs' coats and the granite texture of the Sierra ridge gain a precision the copper-nickel clad strike cannot match, the bright white metal lending the herd a luminous quality against the deeply mirrored sky field.

Authenticating a 2006-S Nevada 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 mustangs' flowing manes and the Sierra ridgeline under angled light for the heavy frost contrast that defines a properly struck silver proof.

The Nevada silver proof was sold exclusively through the U.S. Mint's 2006 Silver Proof Set, never released into circulation. Survival rates remain extremely high, these coins live in original government packaging or third-party holders rather than in pocket change. The premium today reflects both the silver bullion content and the proof preparation, with Deep Cameo examples drawing the strongest collector interest. The "Silver State" inscription gives the issue a meta resonance on the silver tier that clad collectors miss, and Western-themed topical sets pair it naturally with the era's other animal-and-landscape reverses. For more on the program that defined this era of quarter collecting, see the 50 State Quarters series history.