Original U.S. Vietnam War Era “Blacked Out” HGU-26/P Flight Helmet with Dual Visor and Oxygen Mask by Sierra Engineering Category_Flintlock Muskets and Rifles The pommel has nice "Sunwheel"

The pommel has nice "Sunwheel" style swas (hook cross) emblems

The reverse of the award is maker marked with an overlapping MK inside a triangle

Warner claims that they are more simple and of course less liable to get out of repair

Ohioan returned another load of troops that included Base Hospital 98

Well this is something truly interesting

Original U.S. Vietnam War Era “Blacked Out” HGU-26/P Flight Helmet with Dual Visor and Oxygen Mask by Sierra Engineering Category_Flintlock Muskets and Rifles The pommel has nice "Sunwheel"Original Item. Only One Available. The HGU 26 P request for nomenclature is dated Jan 14, 1970 and is based on the HGU 22 P Helmet Shell. There is no military specification detailing exactly what goes into an HGU 26 P but until the appearance of the single visor HGU 26 P both USAF and manufacturer information was consistent in describing the HGU 26 P as an HGU 22 P helmet shell with a PRU 36 P side actuated double visor. Sierra Corp and Gentex Inc