John Herschel discovered NGC 1673 = h2667 on 23 Dec 1834 and recorded (from one sweep only) "vF, S, attached to a star 10m. A doubtful object". His position, though, matches this cluster in RA and is off by less than 1' in dec.
600/800mm - 30" (11/6/10 - Coonabarabran, 264x): fairly faint, small, irregular shape, 35" diameter, contains a quasi-stellar nucleus. A mag 14 star is at the NE end and a very faint star is resolved at the west edge of the halo. A mag 13.5 star lies 0.9' ENE. A string of stars heads NE from the cluster. Forms a pair with S-L 19 2' E, which is a relatively faint, small, roundish 25" glow.
Notes by Steve Gottlieb