finally won his patent infringement lawsuit, and production of all Allen and Wheelock cartridge revolvers ceased. Rimfire revolvers .22 caliber rimfire revolver This is the first cartridge revolver made by Allen and Wheelock, and one of the first cartridge revolvers from any manufacturer (competing with the Smith and Wesson model 1). It is a single-action seven-shot revolver in .22 Rimfire (black powder equivalent of the modern .22 Short). It features the side-hammer of the early percussion revolvers and a spur trigger. Empty cases were removed by removing the cylinder, and using the cylinder pin to push the case out of the cylinder. There are many variations typically organized into six models, though all share the size and critical design features. Most were made with a 3-inch barrel. The first through fourth models have engraved cylinders, with crossed rifles, a horse and rider, military articles, an Indian with bow and a sailing ship. Allen obtained a patent granted in 1858, and it is likely that production began in 1857. Production continued until 1863, when production of all cartridge revolvers was halted by the lawsuit described previously. Production resumed upon expiry of the Rollin White patent in 1869, though likely from parts manufactured in the earlier period. After Allen's death in 1871, production continued for some period under the new company name Forehand and Wadsworth. .32 caliber rimfire revolver Following the introduction of the .22 Rimfire, Allen and Wheelock introduced the larger .32 Caliber Rimfire. Stronger to accommodate the more powerful cartridge, the .32 caliber followed the design cues of the .22 in being a single-action, spur trigger revolver. The cylinder accommodated six cartridges, and barrels could be had in either three, four, or five inch lengths. Engraving on the cylinder was a country scenes with dogs chasing a rabbit. There are three 'models' with detail improvements, though the basic design remained unchanged. Cylinder, and consequently frame, length grew from .905 inch to .940 inch to 1.2 inches. Production likely began in 1858, and ceased in 1863 per the patent suit described above. Production, or at least assembly, resumed presumably at the expiration of the Rollin White patent as a catalog from 1871 offers them at $9.25. A patent was granted 1860 to reduce drag on the recoil shield applied to this revolver as well as the lipfire revolvers. A later patent with a simplified action was granted in 1861. With the