The Colt Government Model is the commercial version of the famous 1911 and 1911A1 that was invented by John M. Browning.  The Colt Government model features a 5" barrel with a 8 1/2" overall length.  A detachable magazine with a 7 round capacity.

The Colt 1911 or Government Model started production in 1912 and the pre-war and post war variants ran up until 1970 when they were replaced by the 70 series government model.