32 Caliber. All are in the same configuration, all have British proof marks and ‘R.B. Rodda & Co. London & Calcutta’. These Colts are in the 57,XXX serial range. Gun #1: Very nice receiver blue with a little flaking and a few scratches. Thinning and turning bbl blue, VG bore, nice wood. Gun #2: This gun has nice bbl blue and a VG bore but appears like the receiver has been refinished a long time ago. Orig forearm wood and extra figure replacement buttstock. Gun #3: 95-98% bright shiny Colt blue on receiver, nice bbl blue which is thinning toward the muzzle. Exc bore, good case colors on hammer, great wood. This one is a dandy! To find two consecutive numbered guns is very difficult but to find THREE consecutive is very rare indeed. They should stay together but will sell separately.