2017-S Sequoyah, Enhanced Uncirculated Proof

The 2017-S Sequoyah Enhanced Uncirculated dollar was produced for the 225th Anniversary Enhanced Uncirculated Set, a special San Francisco offering that honored the founding of the United States Mint in 1792. Enhanced Uncirculated is a third finish family alongside business strike and proof: laser-frost is applied selectively to chosen design areas, then the coin is struck on a polished planchet, leaving a layered visual mix of bright and matte surfaces that neither a regular strike nor a proof can replicate. Sequoyah's reverse, designed by Chris Costello and sculpted by Charles L. Vickers, suits the finish well; the syllabary characters across the field and the texture on the figure's clothing read with unusual depth under the laser frost. The 26,774 mintage was set by demand for the anniversary set and is the lowest figure on any 2017 Sacagawea entry by a wide margin.

What collectors look for on this issue is finish integrity rather than die-state or strike-quality concerns of the kind that drive earlier-era diagnostics. The laser frosting is applied uniformly under tight modern controls, but handling marks pick up easily on the polished portions of the field, and PCGS and NGC certified populations cluster firmly at the SP69 and SP70 levels. SP, the Specimen designation, is the third-party grading shorthand for Enhanced Uncirculated and similar special finishes outside the proof and business-strike systems. Authentication concerns are minimal at this date; the principal verification is that the original Mint packaging, certificate of authenticity, and Anniversary Set provenance accompany the coin if it is purchased raw. Counterfeits are not a working concern.

Inside the collecting landscape today, the 2017-S Enhanced Uncirculated sits as the scarcest of the four 2017 Sequoyah entries by mintage and the most distinctive by finish. The 26,774 figure puts it in genuine modern-set-completer territory: registry collectors building the full Native American Dollar program with all finishes need the date, and demand for the 225th Anniversary set itself supports the issue independently of registry activity. Certified SP69 trades in the low double digits, with SP70 carrying the perfect-grade premium typical of any modern San Francisco special finish. For the program's finish-family structure and the wider Native American Dollar context, see the Sacagawea Dollar series history.