Arnold Schwassmann discovered IC 3074 = Sn. 152 on 6 Sep 1900 using a plate taken with the 6" astrograph at the Königstuhl Observatory in Heidelberg. Based on a plate taken with Harvard's 24" photographic refractor at Arequipa station in July 1904, Frost reported "extends 2' at 170° (Sch. 152)."

400/500mm - 17.5" (5/14/88): very faint, moderately large, thin edge-on NNW-SSE, low even surface brightness.

Notes by Steve Gottlieb