William Herschel discovered NGC 3270 = H III-331 = h719 on 10 Apr 1785 (sweep 394) and recorded "vF; vS; vlbM." On 19 Feb 1827 (sweep 58), John Herschel logged, "F; E; gbM" and measured an accurate position.

400/500mm - 17.5" (4/13/91): faint, fairly small, elongated 5:2 N-S, bright core, faint stellar nucleus, extremely faint thin extensions with averted vision.

Notes by Steve Gottlieb