Inscription: Stamped on the barrel: -ADDRESS COL. SAMl COLT NEW-YORK U.S. AMERICA-;
On the left side of the frame, and also on the powder flask: COLTS/PATENT;
Below, on the trigger guard: 4 cal.
Engraved on the backstrap: Major Charles T. Baker/from Col. Colt.;
On revolver parts: serial numbers with dots (denoting special attention in manufacturing and finishing).