Lewis Swift discovered IC 1525 = Sw. IX-100 on 19 Aug 1887 and logged "eF; pS; R; D * points to it." His RA is 45 seconds too large and happens to fall closer to UGC 12888 = MCG +08-01-017 = PGC 73195, a much fainter galaxy. Swift very likely picked up the brightest of the 3 galaxies in the field. MCG misidentifies MCG +08-01-017 as IC 1525, instead of +08-01-016.

400/500mm - 17.5" (7/17/93): fairly faint, fairly small, slightly elongated SW-NE, 1.0' diameter, broad mild concentration, very small brighter core. Surprisingly bright for an IC galaxy. Located 8' WSW of mag 7.3 SAO 53560. Brightest of three with PGC 18 10' ENE and UGC 12888 6.5' E. UGC 12889 lies 24' NNE. PGC 18, just 1.7' NNE of the mag 7.3 star, appeared extremely faint, very small, round. UGC 12888 was a challenging object and just glimpsed 4.2' SW of the bright star.

Notes by Steve Gottlieb