Blowback-operated semi-automatic chambered for 6.35mm cartridge. Has a 1.5" barrel and is actually an original design, which was rarely found on Eibar guns of this period. Has an oddly shaped slide and barrel is retained by means of a screw in front of frame. It has a 6-shot magazine and slide marked "6.35 Tanque Patent". Plastic grips have a tank molded into them and word "Tanque", as well as letters "O&V".