4) A fairly useful unused unissued RAF leather tab with popper from the flying helmet. Usually seen to one side of the C-Type flying helmet and possibly on other flying helmets?. The leather wraps around the wiring loom and is stitched in place, the popper then attaches to one side of the flying helmet to keep the wiring in tidy, order as not to get in the way of the wearer. Around during WW2 and later. It is in perfect order.