Unwin and Rodgers Rimfire Knife Pistol

Unwin and Rodgers rimfire Knife Pistol with white-metal octagonal barrel stamped Unwin & Rodgers Patentees Sheffield and NON XXL, two folding single-edged knife-blades white-metal body with pinned rounded dark horn side-plates chequered at the butt plus opening butt cap and Birmingham proof marks. For other examples see Lewis Winant, Firearms Curiosa, 1955, pp. 122-125, figs. 126-128 – 9 cm. barrel