Francis Leavenworth discovered NGC 1957 = LM 1-149 on 11 Dec 1885 with the 26" refractor at the Leander McCormick Observatory. His rough position (nearest min of RA) is a good match with PGC 17427. RNGC classifies it as an unverified southern object.
400/500mm - 17.5" (12/3/88): very faint, very small, round, weak concentration. Located 5' SSE of NGC 1954.
600/800mm - 24" (12/28/16): at 225x; fairly faint, small, round, 20" diameter, gradually increases to the center. With direct vision a stellar nucleus pops out. Situated 4.5' SSE of NGC 1954 in a trio (HDCE 361) with IC 2132.
Notes by Steve Gottlieb