Original U.S. Vietnam War Era US Air Force Security Police Combat Defense Force M1 Helmet Liner for the Strategic Air Command With Blue Beret - WWII Firestone Liner M3 Grease Gun "- Tattoo: "Tattoo

"- Tattoo: "Tattoo

illustrating the lion standing upon the King's crown

a coach blunderbuss and a full length fowling piece

with characteristic self-command

Original U.S. Vietnam War Era US Air Force Security Police Combat Defense Force M1 Helmet Liner for the Strategic Air Command With Blue Beret - WWII Firestone Liner M3 Grease Gun "- Tattoo: "TattooOriginal Item: Only One Available. This is a very nice example of a genuine WWII "High Pressure" helmet liner by Mine Safety Appliances (MSA). The liner was then reissued for post war use during the Korean War. The liner is marked on the left side with the unit insignia of the U. S. Air Force Strategic Air Command. Helmet liners such as these were often worn during training as well as a patrol helmet, as the steel helmets were not required, and could