US VIETNAM WAR AIRFORCE SAGE GREEN WOOL TOQUES AS WORN UNDER PILOTS JET HELMETS:

US AIRFORCE TYPE “H-4” FLIGHT HELMET REPLACEMENT LINERS, TYPE “SUSPENSION HARNESS AND HEADBAND ASSEMBLY”, PART #53D55, ORIGINAL AF OLD STOCK UNISSUED IN ENVELOPES DATED IN THE LATE 1950’S, SMALL SIZE ONLY, EACH