This is a very unusual and certainly very interesting, "one of a kind" miniature Walther PP pistol that fires a small 1.5mm blank cartridge. The overall size of this pistol is approximately 2 3/4 inches long by 2 inches high. There are no Walther factory markings or proof marks, however it is a dead-ringer for a Walther PP semi-automatic pistol. The rear end of the slide has a small percussion cap, nipple with the top rear section of the slide having seven small ports. The area where a magazine would normally fit inside the grip, has a small single lever that at one time probably actuated the hammer (which is missing) that would in turn fire the small blank cartridge. The trigger does not function and is only intended to duplicate the appear of the pistol overall. Certainly a very unique and one of a kind Walther prototype miniature, blank firing pistol. Illustrated on page 18 of WALTHER PISTOLS AND RIFLES by W.H.B. Smith, ex Sid Aberman Collection.