In prior centuries, gentlemen carried flintlock solitary-shot pocket pistols, in some cases even with a bit folding bayonet on them, in their tailcoat pockets. That gave technique to the percussion solitary-shot that even today even now bears a Edition of Henry Deringer of Philadelphia’s name. William Elliott’s Double Derringer, as https://switchgun2271255.blogzet.com/the-olding-pocket-pistol-diaries-47930427