john wilkes BOOTH'S derringer
A derringer is generally the smallest usable handgun of a given caliber. They were frequently used by women, because they are easily concealable in a purse or as a stocking gun. But john wilkes booth was able to conceal this gun until e was within point blank and no chance of missing, thats when he took the shoot that mortally wounded Abraham lincoln. The turning point of small arms and concealed pistols.