This is a Colt mod. 1911 made under license by Kongsberg Våpenfabrikk (Kongsberg Arsenal).

Slide is stamped "11.25 mm  AUT. PISTOL M/1914".

Production started 1917 (parts from 1916) and ended in 1947.

During WWII production continued under German supervision. Some where stamped with German proof (Waffenamt 84 / WaA84) marks and found their way in to German service under the designation "Pistole 657 (n)". There were also smuggled a large number of parts out of the factory during WWII, these parts were assembled to complete guns and used by the resistance. It's said that as many as 500 guns were assembled this way. These guns had partially markings, and mostly no serial number. Some where completely unmarked.

The one depicted below was produced in 1918 and has a low 3-digit serial number.

 

Index

 
Year Serial numbers

Numbers produced

1917 1-95 95
1918 96-600 505
1919 601-1150 550
1920 1151-1650 500
1921 1651-2200 550
1922 2201-2950 750
1923 2951-4610 1660
1924 4611-6650 2090
1925 6651-8940 2240
1926 8941-11820 2880
1927 11821-15900 4080
1928 15901-20100 4200
1929 20101-21440 1340
1932 21441-21940 500
1933 21941-22040 100
1934 22041-22141 100
1936 22142-22211 70
1939 22212-22311 100
1940 22312-22361 50
1941 22362-26460 4099
1942 26461-29614 3154
1945 29615-32328 2270
1947 32340-32854 518