Michael Kaufman was a talented gunsmith who worked for the Webley company from 1878 until 1881. While there, he patented a substantially improved clockwork for the gun, removing 5 parts from the system and improving the trigger press. He was paid a royalty for this system, which was tracked by the stamping of “MK” numbers on each gun so equipped. Between 1882 and 1885 Webley made three iterations of revolver with his lockwork, continuously improving the the latch system that held the frame together while firing. This example is a third pattern, of which fewer than 100 were made. It is the first appearance of the classic stirrup latch locking system, which was patented by Webley himself and would be used in all future patterns.