barrel bushing, 3-inch barrel; 1908–1910, SN 001 through 6250 Type III: integrated barrel bushing, 3-inch barrel; 1910–1926, SN 105,051 through 468,789 Type IV: integrated barrel bushing, 3-inch barrel, magazine safety Type V: integrated barrel bushing, 3-inch barrel, military sights, magazine safety on both commercial and "U.S. property" variations. SN 468,097 through 554,446. There was an M1903 version with a military Parkerized finish, which is otherwise the same as the Model IV, SN 554,447 through 572,214. Trivia Former Japanese Prime Minister Hideki Tojo used a Colt Model 1903 to attempt suicide shortly before his arrest for war crimes on September 11, 1945. Tojo was convicted at trial and was executed on December 23, 1948. Tojo's pistol is on display at the MacArthur Memorial in Norfolk, Virginia. The Colt Model 1903 Pocket Hammerless with SN539370 took part in the attempt of assassination SS-Obergruppenführer Reinhard Heydrich (top nazi officer) in Protectorate Bohemia and Moravia on May 27th 1942 in Prague. The assassination had been successful due to wounds he suffered from the bomb thrown into his car. See also List of individual weapons of the U.S. Armed Forces Ruby pistol References External links Colt pistol hammerless model 1903 (infographic tech. drawing) Colt semi-automatic pistols .32 ACP semi-automatic pistols .380 ACP semi-automatic pistols World War II firearms of the United States Police weapons Semi-automatic pistols 1901–1909 Simple blowback firearms Firearms by John Browning Weapons of the Philippine Army