Albert Marth discovered NGC 6148 = m 310 on 10 Jun 1864 and noted "vF, S, with **." There is nothing at his position. RNGC identifies PGC 58162 as NGC 6148. This faint galaxy is 33 seconds of time east and 4.3' south of Marth's position, an unusually poor match, and in RNGC Corrections #4, I listed the RNGC identification as questionable. But PGC 58162 is surrounded by a small group of a half-dozen stars and may match Marth's comment "with **".
400/500mm - 17.5" (5/28/89): not found.
600/800mm - 24" (7/7/13): at 282x appeared faint to very faint, very small, elongated 3:2 SW-NE, 15"x10", low even surface brightness. Can just hold steadily with averted. Located 9' SSE of mag 8.9 HD 148405 within a small trapezoid of mag 13-14.5 stars. This galaxy, found by Marth in 1864, is one of the faintest he discovered with the 48" on Malta and was missed previously in my 17.5".
Notes by Steve Gottlieb