Serial no. 233 for 1853, 7.5inch sighted octagonal barrel stamped with the manufacturer's details, the left side with London proof marks rack no. 798 beneath a small arrow, the cylinder with traces of naval engagement scene, serial no. 233, the left side of the frame stamped COLTS PATENT, brass trigger guard and back strap, serial no. 233, for 1853, wooden grips, pierced for a lanyard loop, now filled.