During World War One, the Russian Government purchased some 51,000 Colt 1911 pistols. These were standard commercial production guns, chambered for .45 ACP, and were shipped in 1916 and 1917, with JP Morgan acting as purchasing agent. They have serial numbers between about C21,000 and C89,000. The only distinctive markings are on guns above about C50,000, which were marked “Engl. Order” in Cyrillic.