The Norwegian Kongsberg Model 1914 was a slightly modified copy of the U.S. Model 1911 pistol used by the Norwegian army. This Model 1914 features a slide dated "1926" on the right side. The left side of the slide is marked with the caliber, model, and serial number marking with the monogram of King Haakon and the Kongsberg Crest. Inspection mark below the date and behind the rear sight. Barrel, slide and frame feature British proofs. Matching serial numbers found on slide, frame, trigger, hammer, safety, slide stop, mainspring housing, grip safety, ejector, magazine catch, firing pin stop, barrel, barrel bushing, and recoil spring plug. Includes brown leather holster, one 22 caliber conversion/adapter barrel, six cartridge adapters, and factory letter giving background information for the conversion unit. From 1928 to 1934 conversion units were produced for these pistols which consisted of a .22 caliber barrel which converted the pistol to a straight blow back mechanism and seven cartridge adapters in the size and shape of .45 ACP but hollowed out to accept .22 long rifle ammunition through a normal magazine. This pistol is documented on page 143 of "Kongsberg Colten" by Karl Egil Hanevik.