Encouraged by an ongoing military contract, Colt turned his eye toward the civilian marketin 1848. Civilian pocket revolvers, such as the Wells Fargo or 1849 Pocket, were .31 caliber pistols that fit easily in a coat pocket. Just as silver spring steel allowed Colt to adapt a .44 cylinder to a .36 frame, it permitted the .31 cal. 1849 Pocket revolver to be upgraded to a .36 cal. The 1862 Pocket Navy retains the octagon barrel and hinged loading lever of the 1851 Navy, while the 1862 Police model is a miniature of the 1860 Army, with fluted cylinder, streamlined round barrel and “creeping” loading lever. The Pocket and Police were the last two muzzle loading models to be produced by Colt and together they totalled approximately 47,000. About 19,000 were the model 1862 Pocket Navy.