The Colt Paterson Revolver
True revolvers were available in very limited quantities by the end of the mountain man era (I define this as about 1840). In 1835 Samuel Colt obtained the first of numerous patents in regards to the design of his pistol. By 1836 he formed the Patent Arms Manufacturing Company, which began operations in an unoccupied section of a silk mill in Paterson, N.J. (producing the Colt-Paterson pistol) The Colt-Paterson was a single-action pistol distinguished by a disappearing trigger and no trigger guard. The pistol was manufactured both with and without a loading lever. The pistols were relatively small, being characterized as belt pistols, rather than holster pistols and were available in .28, .31, .34, and .36 calibers. Approximately 2,000 of these were manufactured between 1836 and 1842. Starting in 1839 a larger, holster pistol, with a 9-inch barrel and in .36 caliber was manufactured.
Acceptance of this pistol was slow, and only small orders were received. Limited quantities were purchased by Army officers for their personal sidearms, some seventy-five were ordered for South Carolina Militia officers and small numbers were obtained by the new Republic of Texas for use by the Texas Rangers.