Box 540 MK.1. Original metal container for 6 MK.1 Double Star Yellow Signal flares. Such flares were used by downed airmen to attract attention and the different colours communicated different messages to potential rescuers. Also used by the Army & Naval Forces. Manufactured by the Metal Box Co. this black-painted rectangular metal tin with hinged lid measures approximately 15 x 9 x 3.5cm. Details of the original contents are printed in light green along with a yellow star on the lid. Clear May 1945 date. Some scratches and paint loss but in very good overall condition. Stock code M26311.