Military Versions from 1912 to 1945. Manufacturer/Serial Number/Date Made Beginning of M1911: 1) Colt: S/N 1 to 3190 = April 16, 1912 to May 31, 1912 2) Colt: S/N 3190 to 7501 = May 31, 1912 to Oct. 10, 1912 • (S/N 3501 to 3799 were first U.S.M.C. Pistols made by Colt delivered June 6, 1912.) 3) Colt: S/N 7501 to (approximately) 20,000 = Oct. 10, 1912 to Jan.

1913 4) Colt: S/N (approx.) 20,000 to 83,856 = Jan. 19, 1913 • S/N 38,001 to 43,900 Navy Model (USS New York) = March 9, 1912 to March 5, 1915 • S/N 43,901 to 44,000 Navy Model (USS Texas) = March 9, 1912 to March 5, 1915 • S/N 36,401 to 37,650 U.S.M.C. Model made by Colt = July 9, 1913 5) Colt: S/N 83,856 to 89,801 = Aug. 19, 1913 to July 20, 1914 • (S/N 83,901 to 84,400 U.S.M.C. Model = May 12, 1914) 6) Colt: S/N 89,801 to 108,601 = July 20, 1914 to Feb.

8, 1915 • (S/N 96,001 to 97,537 Navy Model (U.S. Virtual Hottie 2 2.03 Rapidshare. Navy Yard, Brooklyn, N.Y. Dp System Error 10053 Software Caused Connection Abort. ) = March 9, 1912 to March 5, 1915) 7) Colt: S/N 108,601 to 290,000 = Feb.

8, 1915 to May, 1918 • (S/N 109,501 to 110,000 Navy Model, S/N 223,953 to 223,991 Navy Model, S/N 232,001 to 233,600 Navy Model) • (S/N 151,187 to 151,986 U.S.M.C. Model, S/N 185,801 to 186,201 U.S.M.C. Model, S/N 209,587 to 210,386 U.S.M.C. Model, S/N 215,387 to 217,386 U.S.M.C. Model) 8) Colt/Springfield: S/N 128,617 to 133,186 = 1916 to 1924 ( These models are very hard to properly identify) 9) Colt: S/N 290,000 to 450,000 = May, 1918 to Oct. 24, 1918 10) Colt: S/N 450,000 to 629,500 = Oct. 24, 1918 to April 10, 1919 11) Springfield Armory: S/N 72,571 to 133,186 = April 1914 to April, 1917 12) Remington-UMC: S/N 1 to 15,000 = Aug.

10, 1918 to May 24, 1919 13) Remington-UMC: S/N 15,000 to 21,676 = Aug. 10, 1918 to May 24, 1919 14) North American Arms: S/N 1 to 100 & S/N’s 111, 222, 333, 444, 555 = July 1, 1918 to Dec. They are very rare and rank in value with Singer models. ( None of these were reported shipped to any branch of the military but about 100 regular models and about 5 presentation models were manufactured in Quebec, Canada by the North American Arms Company, Ltd.) 15) A.

MODELS, SERIAL NUMBERS AND - Ithaca Gun Company. US Army Ithaca Model 1911A1 Bringback USAF.45 ACP Semi. Model: 1911 A1 Serial Number. This is a U.S. Government marked Ithaca Model 1911.