[WALTER, A. B. (1820-1875), engraver]. Full-Length Portrait of General George McClellan on Horseback, after G. Schussele. [Philadelphia: John Dainty, 1863]. Proof copy of this large engraved portrait (?PROOF? at the lower right corner). Sight approximately 30 ? x 20 ??. Matted and framed under glass. Frame size approximately 40 ? x 31?. Mild visible foxing to print, some wear to frame. Fine. A rare proof copy of this handsome portrait. This image was later used for McClellan?s 1864 presidential campaign in his run against Abraham Lincoln.