Stores reference 6D/644. Size medium. The rubber is soiled but supple and the overall shape is very good. This example has a distinctive roughened texture to the upper part of the moulding, a feature introduced to help reduce problems with icing at altitude. The mask is 97% crack free. All three nosewire lugs are complete/undamaged and there is only one small crack at the edge. The harness is grubby and retains little elasticity but does still have one of the original elastic bands. Lined in brown suede, this is complete but rather grubby. The mask is fitted with a good type 48 microphone assembly (type 25 microphone, loom and socket) complete with internal anti-freeze gauze plate. A very good used mask. Stock code O22040.