Unusual USAF pilot hardhat, all electrics present including boom mike and oxygen mask. This helmet, sometimes referred to as a FAC or "Polo" model, was only in use for several years and reportedly not very popular. Various militaria forums show some controversy as to who wore this model; some say forward air controllers ((FACs), KC-135 refueling crews or maybe even C-130/C-141 pilots on combat air drops. Very good condition. Not often found complete with electrics and oxygen mask. While not in service very long, this is a "must" in a helmet collection.