Samuel Colt new revolver had a stationary trigger and was in a larger caliber. Colt submitted his single prototype to the War Department as a "Holster revolver". Captain Samuel Walker of the Texas Rangers had acquired some of the first Colt revolvers produced during the Seminole War and saw first-hand their effective use as his 15-man unit defeated a larger force of 70 Comanche in Texas. Walker wanted to order Colt revolvers for use by the Rangers in the Mexican–American War, and traveled to New York City in search of Colt. He met Colt in a gunsmith's shop on January 4, 1847,
Samuel Colt was exonerated and the story became national news when "Scientific American" reported that the fault was not with Colt, but with Washington politicians. With a virtual monopoly, Colt sold his pistols in Europe, where demand was high due to tense international relations. By telling each nation that the others were buying Colt's pistols, Colt was able to get large orders from many countries who feared falling behind in the arms race. A key element to Colt's success was vigorous protection of his patent rights. Even though he lawfully held the only patent on a revolver, scores of imitators copied his