Size small. Dated 4/66. Fitted with the later plastic 13100 Airmed microphone and a standard webbing harness. The rubber facepiece retains excellent shape and flexibility and is really very clean. No cracking or crazing and with a fairly clean pearl grey suede lining. The harness is complete with very good elasticity. The microphone is wired with 'cord elect assembly 5965-99-953-1136'. An excellent lightly used mask. Stock code O27481.