DeLisle Stewart found IC 2592 = D.S. 351 on an Arequipa plate around 1899 and reported "F, pL, cE 15°, spir?". His position matches ESO 264-007, a galaxy discovered by John Herschel and catalogued as NGC 3366, though he made a 10 minute error in RA. See Harold Corwin's notes.

400/500mm - 18" (2/19/09): faint, fairly small, elongated 3:2 SW-NE, ~0.6'x0.4' (viewed brighter core region). Located just 1.7' S of mag 6.1 HD 91805 and the combination of low elevation and the glare of the bright star severely hampered viewing the galaxy. At 225x I was able to place the star just outside the edge of the field which increased the visibility. This galaxy is located 1.3° ENE of NGC 3256 and is probably part of the southern group Klemola 12 NGC 3256, 3256B, 3261, 3262 and 3263 were observed from Costa Rica).

Notes by Steve Gottlieb