By The Ohio Chemical Mfg. Co. Dated 11-44. Size large. The rubber facepiece is very good, flexible and quite clean as is the tube. Excellent webbing harness. Wired with an ANB-M-C1 microphone assembly, (mic, loom and PJ-292 2-pin plug) for use without a throatmike. Very good used condition. Stock code O17445.