Size small. Dated 2/80. Fitted with the smaller plastic Amplivox 13100 microphone and 'quick disconnect' (QD) loop harness loops for use with metal oxygen mask hooks. Standard elasticated webbing harnesses can also be accomodated by reversing the QD loop and utilizing the 'closed loop' side of the fitting. The rubber is in excellent condition without cracking or damage. Really quite clean externally and the pearl grey chamois lining is also very clean. The microphone and socket are both very good but the loom is shedding the rubber covering. A very good used example of this less common Type H variant retaining very good overall shape. Stock code O11030.