By Airmed Ltd. Stores Ref. 22c/2969. Dated Feb. 1971. Hooknut Assembly (Right Hand) . Adjustable metal hooknuts as used on bonedomes for securing and adjusting the fit of the oxygen mask in use. Mint unisued old stock still sealed in the original packaging.
This is the hooknut and knurled knob only as photographed with no fixing plates. We have opened one for the photographs but any purchased will be sealed as in photos 3 - 6 inclusive . Stock code H15608.