Reproduction oxygen hose for the type D oxygen mask. Black rubber tubing with yellow flecked black braided sleeve. Correct 5' length. Fitted with an original twine bound Mk.IIIB* brass bayonet connector, stores reference 6D/101. This has well defined Air Ministry markings and 1939 date code. The hose is in excellent condition, completely flexible and undamaged. Original hoses are virtually unobtainable so this is probably the only way to add a hose to your collection. MK.IIIB* connectors are increasingly rare and highly sought after. Stock code O23263.