Manufactured in 1875 and subsequently refurbished by an arsenal for re-issue, most likely for the Philippine Insurrection. This is one of the Colt Single Action Cavalry Model revolvers in the serial number range from 16433-19529 that were inspected by Ordnance Sub-Inspector A. P. Casey. The A.P. Casey sub-inspector "C" mark is found on the trigger guard, back strap, and cylinder. "P" proofmarks are on the cylinder and barrel. The left side of the frame has the two-line patent dates marking followed by "U.S." (slightly defaced). The barrel has the one-line Hartford address. Traces of a cartouche remain on the left side of the grip. Matching serial numbers are on the frame, trigger guard, back strap, cylinder ("9384"), and barrel ("9384").