USAF P-4B Gentex Pilot Flight Helmet with Oxygen Mask 1950’s Size Large Air Force Pilot Helmet The metal part of the helmet and googles are in good shape but all of the leather and rubber are very dry rotted. It comes with a display stand. The item “USAF P-4B Gentex Pilot Flight Helmet with Oxygen Mask 1950’s Size Large” is in sale since Tuesday, February 28, 2017. This item is in the category “Collectibles\Militaria\Militaria (Date Unknown)\Air Force”. The seller is “healygroup” and is located in Phoenixville, Pennsylvania. This item can be shipped to United States, to Canada, to United Kingdom, DK, RO, SK, BG, CZ, FI, HU, LV, LT, MT, EE, to Australia, GR, PT, CY, SI, to Japan, to China, SE, KR, ID, to Taiwan, TH, to Belgium, to France, to Hong Kong, to Ireland, to Netherlands, PL, to Spain, to Italy, to Germany, to Austria, RU, IL, to Mexico, to New Zealand, PH, SG, to Switzerland, NO, SA, UA, AE, QA, KW, BH, HR, MY, CL, CO, CR, PA, TT, GT, HN, JM.