AN AUSTRIAN BREECH-LOADING TAKE-DOWN REPEATING AIR RIFLE on the Girandoni principle, with turn-off octagonal sighted barrel with tubular steel magazine and spring-loaded transverse bar, plain rounded lock (action defective), brass action incorporating the back-sight and signed on the simulated barrel tang, solid side-plate, shaped spurred brass trigger-guard, and japanned iron turn-off butt-reservoir with domed brass butt-plate engraved with the number 1500, by C. Heiberger, Wien, late 18th Century