Here is British contract .455 Eley military proofed Colt Government Model pistol serial number W 100744. It was one of 400 pistols shipped to Captain Sir Connop Guthrie, Pier 60, North River NY NY on March 12, 1918. Guthrie was the Special Representative for the British Ministry of Shipping in the U.S. and a member of the U.S. Shipping Commission in 1918. It has the view mark for G.W.R. Steadman, British Inspector at the Colt New Haven Factory and the British Broad Arrow and Crossed Pennant military acceptance marks.