2017-S George Rogers Clark, Enhanced Uncirculated Proof

The 2017-S George Rogers Clark, Enhanced Uncirculated is the companion to the 2017-S Ellis Island Enhanced Uncirculated and the second of only two ATB quarters issued in the laser-etched finish that defined the U.S. Mint's 2017 225th-anniversary Enhanced Uncirculated Coin Set. Each set sold tied a single Enhanced piece of each design to the print run: the Mint reported 1,078,981 sets sold, the figure that anchors both Enhanced Uncirculated ATB issues. Frank Morris's reverse, sculpted by Michael Gaudioso, renders Lt. Colonel George Rogers Clark fording the freezing Wabash River with his Virginia militia behind him, the February 1779 expedition that took British-held Fort Sackville at Vincennes and secured American claim to the Old Northwest at the close of the Revolutionary War.

Authentication on the issue starts with the S mintmark above Washington's head and the laser-etched device texture that separates Enhanced Uncirculated from every other 2017 production. The finish is not a proof: fields are not mirrored, and the devices show a fine, evenly distributed laser frost that reads as partial cameo under direct light rather than the deep, raised frost of traditional die-prepared proof devices. PCGS, the Professional Coin Grading Service, and NGC both explicitly label slabs "Enhanced Uncirculated" or "Enhanced UNC" rather than the proof designation, which preserves the distinction at resale and pop reporting. Under magnification, the laser etching shows a regular micro-texture across Clark's tricorn hat, the militia figures, the rifle and powder horn, and the wagon and water in the foreground, where a traditional cameo frost would show a more random metallurgical surface. The clad composition (75% copper-nickel over a pure copper core, 5.67 grams, 24.26 mm) matches every Washington quarter struck since 1965.

As a collecting target, this is a Regular-classification issue whose collecting value comes from finish and one-time-set status rather than absolute scarcity. The 1.078M print figure is comparable to the year's clad and silver proofs, but the Enhanced Uncirculated finish was a one-off across the ATB program: only George Rogers Clark and Ellis Island received the treatment in 2017, and no other year of the series used it. The George Rogers Clark side of the pair occasionally trades at a small premium to the Ellis Island companion because the design itself is less recognizable and gets pulled apart from broken Enhanced Sets at a slower rate, leaving fewer loose-pop pieces in raw circulation. For the broader story of the ATB proof program and the series' production arc, see the Washington ATB series history.