Albert Marth discovered NGC 7374 = m 500 on 7 Aug 1864 and noted "vF, pL, R." Marth's position is less than 1' north of CGCG 430-006 = PGC 69676. He missed the fainter companion (IC 1452) that was discovered by Bigourdan.
400/500mm - 17.5" (8/20/88): faint, small, slightly elongated ~E-W. Forms a close pair with IC 1452 = NGC 7374B just 1' NNW. IC 1452 appeared very faint, extremely small, round.
17.5" (9/19/87): faint, small, round, a mag 14 star is 30" N. Forms a double system with IC 1452 = CGCG 430-005 57" NNW.
600/800mm - 24" (7/29/16): at 260x; fairly faint, fairly small, slightly elongated E-W, broad weak concentration, ~30"x24". Forms a close pair with virtually stellar IC 1452 [centers separated by 56"]. The companion was faint, but extremely compact (core only seen), so has a high surface brightness. On a later observation (10/1/16), a very small halo (~6"-8") was visible using averted vision only. This pair is is situated on the southwest end of ZwCl 2247.3+1107 (distance ~360 million l.y). The core of the cluster contains NGC 7385 and 7386 and lies 1.2° NE.
Notes by Steve Gottlieb