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 and cadmium plated crocodile clothing clip. The hose is in very good to excellent used condition retaining full flexibility. 'Twine bound' connectors. Stock code O23791.