Login or sign up Lost password?
Login or sign up
B.” Colt inspection initials.) 1) Springfield Armory: U. ARMY NATIONAL MATCH = 1954 to 1967 (Very hard to identify. to Nov., 1914 ( Only 5000 pistols in this serial number range were shipped to Canada.) Caliber .45 ACP 2) Colt M1911A1 Canadian Contract: S/N 930,000 to 936,000 = 1943 ( 1,515 military model pistols were shipped to Canada through the Lend-Leased Act from this serial number range.) Caliber .45 ACP 3) Colt M1911 British Contract: S/N W29117 to W97000 and S/N C29 to C74,200 = May 1912 to April 1919 (Approx. Serial numbers that begin with a “C” were .45 ACP and serial numbers that begin with a “W” were .455 Webley calibers.