2007-S Proof

San Francisco struck 3,275,000 Sacagawea dollar proofs in 2007, the standard cameo proof packaged in that year's U.S. Mint Proof Set and Silver Proof Set. The figure tracks the program's normal proof output for the era and reflects no scarcity in any practical sense. What sets 2007 apart in Sacagawea proof history is not the strike but the legislative timing around it: in September of that year Congress passed the Native American $1 Coin Act of 2007 (Public Law 110-82), the law that ended the Soaring Eagle reverse and mandated the annually rotating Native American designs starting in 2009. The 2007-S proof is therefore the second-to-last proof issue carrying Thomas D. Rogers Sr.'s soaring eagle reverse, with only the 2008-S proof following before the design rotation took over. Glenna Goodacre's Sacagawea portrait stayed unchanged on the obverse.

Strike characteristics on the 2007-S read true to type for the era. Cameo (the visual contrast between mirrored fields and frosted devices) appears on essentially every certified example, with Deep Cameo (DCAM, where the device frost is heavy and the mirrors approach a black-glass quality) making up the bulk of the higher-graded population. Surface review under angled light is the working diagnostic: hairlines from improper handling are the most common deduction, since the manganese-brass alloy is softer than the silver and copper-nickel proofs collectors typically work with, and spotting (small dark dots that form on poorly stored brass-clad surfaces) is the second condition issue. The Professional Coin Grading Service and Numismatic Guaranty Company populations show abundant PR69 DCAM material and a thinner PR70 DCAM tier where premiums begin.

The 2007-S proof is a Regular classification entry. A complete 2000 through 2008 Sacagawea proof date-set runs nine coins (counting only the regular San Francisco proof issues, not the 2000-W gold or the 2000-P Goodacre Presentation), and the 2007-S is among the readily sourced. Original sealed Mint Proof Sets or Silver Proof Sets carry the lowest premium over face plus packaging cost. Pulled and certified PR69 DCAM examples trade for modest sums, with the PR70 DCAM tier the realistic upgrade target rather than a major key. For the legislative shift behind the 2009 reverse rotation and the program's broader arc, see the Sacagawea Dollar series history.