One of the rarest gambler/hide away/ personal defense deringers around. Incorporates a 6mm (22) rimfire revolver, “knuckles” that unfold to provide a grip for the revolver and a 2 ½" folding dagger. Weapon is 4" long when folded. Expands to 8" when at full length. Marked “Dolne - 6mm” (L. Dolne - Imuur) on frame, folding trigger and exposed springs. Brushed finish, overall excellent. Known as the Apache Knuckle-duster (Up-Pash) for the Parisian fighters, called Apaches, that colonized the French capital starting in 1875.