Standard wartime pattern corrugated rubber oxygen tube. Complete with screw-threaded top connector for attaching to a G-type or H-type mask. Fitted with a brass Air Ministry marked MK.IV (6D/526) bayonet connector with cadmium plated crocodile clothing clip. The hose is in fairly good used condition with cracks/crazing in the folds and a small split near one end - please note that this looks much worse than it is when seen in close up photographs. Very flexible. 'Twine bound' connectors. Stock code O22220.