Albert Marth discovered NGC 4012 = m 225 = Sf 108 on 15 Jan 1865 and recorded "vF, S, lE". His position matches UGC 6960. Truman Safford independently found this galaxy on 12 Jun 1868 with the 18.5-inch refractor at the Dearborn Observatory.

400/500mm - 17.5" (3/24/90): very faint, small, elongated NNW-SSE, low even surface brightness.

Notes by Steve Gottlieb