Classic green rubber mask with a fibreglass 'exo-skeleton' and horse-shoe clamp harness with later 'roller-chain' fittings to help prevent twisting. The rubber is in excellent flexible condition. Good exo-skeleton and harness though the chain covering is cracked in places. Fitted with a plastic amplivox 13100 microphone/loom and multi-pin Socapex connector plus a very good corrugated rubber oxygen tube with alloy bayonet connector (6D/2053). This should fit the MK.4 and ALPHA MK.10 series helmets. A really good example. Stock code O24373A.