Kodia Penta Bolt (5 Bullet) OSK DT rim door lock with five bullet bolts and 4 Brass Ultra Keys. It is listed as type OSK (D/T). Five dark bronze-tone bolts throw from the side of an antique brass body, which carries a brushed steel cover plate and a large oval knob. Screw holes at the top corner and beside the knob take the mounting screws.