2004-S Michigan, Silver Proof

2026-03-11, San Francisco struck 1,175,934 Michigan silver proofs in 2004 as part of the annual Silver Proof Set, the collector-tier companion to the clad proof. Michigan's reverse, designed by U.S. Mint engraver Donna Weaver, presents the state's distinctive dual-peninsula outline with all five Great Lakes, Superior, Michigan, Huron, Erie, and Ontario, gracefully arranged around it. The motto "Great Lakes State" anchors the composition. On a silver planchet, the cartographic detail of the lake outlines and peninsular borders reads with a sharpness that the copper-nickel clad version simply cannot replicate, the white metal lending a luminous, almost watery quality to the design.

Authenticating a 2004-S Michigan Silver Proof rests primarily on weight: a genuine silver proof weighs 6.25 grams against the 5.67 grams of its clad counterpart, 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 bright, silvery-white reflective surface noticeably brighter than the slightly grayer clad finish, and the edge, viewed straight on at the 24.3mm diameter, shows a solid silver color rather than the copper-cored sandwich stripe. Squared, sharp rims and heavily frosted Cameo or Deep Cameo devices floating against mirror-black fields complete the visual signature. Examine the dies-polished surfaces under angled light for the characteristic deep, glassy reflectivity that defines a properly struck silver proof.

The Michigan silver proof was sold exclusively through the U.S. Mint's 2004 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. For more on the program that defined this era of quarter collecting, see the 50 State Quarters series history.