American geologist (1824–1891). Original 2.5 x 3.25 carte-de-visite bust portrait by LeClear & Robison of Ann Arbor, signed on the reverse in black ink, “With kind regards of A. Winchell, 27 Aug. 1866.” In very good condition, with scattered toning and soiling, and a trimmed bottom edge. RR Auction COA.
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