John Herschel discovered NGC 3275 = h3266 on 1 Feb 1835 and recorded "F; lE; psbM; 20 arcsec." His position matches ESO 375-050.
400/500mm - 17.5" (3/28/87): moderately bright, oval ~E-W, bright core. Located 2.9' N of a mag 10 star within the Antlia Cluster (ACO S636).
Notes by Steve Gottlieb