Stores Ref. 6D/112. Manufactured by Nico Light Co. Ltd. Birmingham. This is a solid brass bayonet connector socket was connected to the oxygen supply in every crew position in wartime bombers. Each crewman could then plug in his oxygen tube using an extension tube ending with a 6D/101 plug. Painted in its original gloss black finish. Mint unissed condition in the original issue box. A.M. marked. Stock code O13546.