US M1916 Colt Pistol Holster. The standard holster for the M1911 Colt pistol was first developed in 1916 and remained in production for the US Army all the way to 1945. The leather holster is nicely maker marked by 'Warren Leather Goods Co.' and dated 1918, inspected by "J.A.O.". Complete with leather string. Nice example in very good condition!