DeLisle Stewart discovered IC 2996 = D.S. 357 on a plate taken in July 1899 at Harvard's Arequipa Station. He noted "F, vS, E at 20°, * sp."

400/500mm - 18" (5/28/06): very faint, very small, slightly elongated, 0.4'x0.3', low surface brightness. A mag 13 star is attached at the south edge. Located 17' SW of NGC 4105/4106 pair.

Notes by Steve Gottlieb