I have a 12 ga Birmingham proofed W Richards that looks very much like Stallones' Wm Moore. Mine is back actioned & side lever. Mine does have a snap off forend rather than being keyed, so may be slightly later & is straight gripped so no grip cap to compare. I have been told that J P Clabrough made some guns marked W Richards, but have no way to verify this is one of them. Though it is now in rather poor condition it does appear to have been better built than the more common W Richards Belgian guns. I do not know if Clabrough made any Wm Moore marked guns or not. I do know mine was proofed prior to 1887, but don't really recall if it can be dated further back than than that or not.
