This research paper describes how the subject, Colt Paterson Revolver, was found. The description in the ad provided by the Dakota Plains Auction Co. didn't match the illustrations shown in the advertisement of the gun. It was either an oddity or something special. It is not this author's nature to whimsically purchase something so expensive without doing additional research as to its true value, and my curiosity. Sam Colt, as a young man, had interests in explosives and guns, what sixteen year old isn't fascinated with them? In those days, the early 1800's, the common gun was a single shot musket. My curiosity turned into a study of how the invention proceeded through its developmental stages. Colt was the first one to invent a repeating revolver capable of expending five shots without reloading between each shot. It further discusses the trials and tribulations leading to the development of that first handmade (experimental) revolver which actually led to the development of four production models. Of the four models, the .36 caliber became the pinnacle of the series, the No. 5 Colt Paterson Revolver, otherwise known as the Holster or Texas Model. It describes, for the first time, the thinking involved as experimentation progressed from the first hand made revolver to the production models. Issues such as the strength of the frame, the metallic quality of the cylinder, the explosive pressures in the cylinder and the bore were key considerations to its success. The research goes into the detailed step by step operation of each part of this gun during the firing cycle, and the genius incorporated into its moving parts; and briefly describes the effect of this revolver in its service in the western expansion of this nation in the mid to later 1800's. It is known for its value to settlers, the Texas Rangers and U.S. Cavalry, in battles with bandits, Indians, and the Mexican Army. One major aspect of Colt's line of revolvers in this era was keeping the Plains Indians at bay while the construction of the Transcontinental Railroad progressed. This railroad enabled the development of new cities, creating the demand for new and expanding markets in manufacturing, igniting the growth of eastern economies and fostering multifarious growth in the west. The .36 Caliber Holster or Texas Paterson Pistol was the spark that ignited this western economic growth of our Nation.