This helmet is out of Carswell AFB, from 87. Its size large, dual visor, set up for MBU-5 mask. Its rare in that the visor cover has been trimmed. It is complete with leather earcups and a newer TPL liner. The original TPL was deteriorated, so I replaced it.The item "HGU-26 B-52 Jet Bomber Pilot Flight Helmet Large" is in sale since Friday, May 10, 2019. This item is in the category "Collectibles\Militaria\1976-89\Original Period Items". The seller is "csardude" and is located in Victor, Idaho. This item can be shipped worldwide.