For the Military or Aviation collector. Thanks for your time and once again please do not hesitate to ask questions. The item "NOS MBU-12 OXYGEN MASK FOR HGU GENTEX PILOT FLIGHT HELMET REGULAR MBU12" is in sale since Tuesday, October 1, 2019. This item is in the category "Collectibles\Militaria\Surplus\Hats & Helmets".The seller is "tolly4" and is located in Gilroy, California. This item can be shipped worldwide.