An Unwin and Rogers combination percussion pistol and clasp knife

An Unwin and Rogers combination percussion pistol and clasp knife, 3.5 in. octagonal barrel with Birmingham proof marks, action and hammer mounted within the frame of the two-blade folding knife, larger blade etched with 'PROTECTOR' amid scrolls, both blades with maker's name to the ricassos, folding trigger, horn grip scales, the butt with hinged lid covering compartment for caps, and complete with bullet mould and tweezers.