Flight Helmet US Airforce W/ type A-14 Oxygen Mask Korean War Era. Red w/ Blue Lightning Bolts Possibly Helicopter Pilots Helmet.See detailed pics for actual condition. The item "US Airforce Flight Helmet With Oxygen Mask Korean War Era" is in sale since Monday, April 27, 2020. This item is in the category "Collectibles\Militaria\Korea (1950-53)\Original Period Items". The seller is "wnywholesale1" and is located in Chantilly, Virginia. This item can be shipped worldwide.