US CURRENT TYPE AIR FORCE PILOTS OLIVE GREEN NYLON SOFT FLYING HELMET, “TYPE HELMET FLYERS NYLON WINTER B9B (1976)” SIZE MEDIUM, MINT

THREE (3) US POST VIETNAM WAR (MID 80’S) ARMY TYPE “SPH-4” HELICOPTER OD FLIGHT HELMETS, ALL ARE EXCELLENT AND CLEAN, BUT EACH IS MISSING A NUT, A BOOM MIKE, A LENSE, A SCREW, OR?, GREAT TO RESTORE OR JUST LEAVE THEM ON A SHELF AS THEY ARE, LOT FOR