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 french cuffs and a correct

french cuffs and a correct period applied variety of insignia

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

and then adhesive was used to attach it back together

This Board met on September 3rd 1872 for this very purpose and there were approximately 100 American Arms Manufacturers together with just NINE Foreign manufacturers all listed on the docket for the Board's consideration

the harbour

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 french cuffs and a correctOriginal 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