Concealable pistols sport a wide range of bizarre designs. On this week's Curator's Corner, John Popp joins National Firearms Museum Director Jim Supica for a segment on strange Derringers, or concealable small firearms. First is a modification of the classic Remington double-barrel design, wielding a third barrel and an unusual dial selector. Next up is an innovative "knuckle-duster," a tiny revolver that can be reversed to act as a brass knuckle piece. And finally Supica demonstrates French and Italian "squeeze" pistols, which fire by squeezing a lever rather than pulling a trigger, and a Chicago Firearms gun with a unique internal wheel design. Originally aired on 10/29/2009.