In preceding hundreds of years, gentlemen carried flintlock one-shot pocket pistols, often even with a little bit folding bayonet on them, within their tailcoat pockets. That gave strategy to the percussion one-shot that even now nevertheless bears a Edition of Henry Deringer of Philadelphia’s name. William Elliott’s Double Derringer, as https://elliottmvusp.bloggazza.com/32213477/everything-about-olding-pocket-pistol