Stores reference 22c/1396. Manufactured in copper with two female press stud fasteners enabling it to be clipped to the side of the fabric F and G-type helmets. Used in conjunction with the type-H oxygen mask. Also useable on some wartime helmets including the C-type, although not quite the same design as the WW2 variant and technically incorrect. Stamped with reference numbers. Complete with original fixing bolts. Very good used condition. Three available, priced indivdually. Stock code O22078.