Colt M1878 operated while wearing gloves, so "Alaskan Model" is a misnomer. Colt M1878 The Colt M1878 is a double-action revolver that was manufactured by Colt's Manufacturing Company from 1878 to 1907. It is often referred to as the "Frontier" or the "Double Action Army" revolver. A total of 51,210 Model 1878 revolvers were manufactured from 1878 to 1907, including 4,600 for the US Ordnance Department. These are known as the "Philippine" or "Alaskan" models. Samuel Colt experimented with double-action revolver systems, but he considered them to be unreliable. After Colt's patent expired in 1857, other manufacturers began producing double-action revolvers, but
Colt Open Top Pocket Model Revolver Colt Open Top Pocket Model Revolver The Colt Open Top Pocket Model Revolver was a single action pocket revolver introduced by the Colt's Patent Fire Arms Manufacturing Company in 1871. Introduced a year before the Colt Open Top (a model from 1872) and two years before the Colt Peacemaker and the Colt New Line(both introduced in 1873), the Colt Open Top Pocket Model Revolver was, alongside the Colt House Revolver, one of the two first metallic cartridge rear-loading revolvers manufactured by Colt's. It also was one of the first pocket metallic cartridge revolvers made by the company. When the Rollin