Original U.S. Vietnam War Era 723rd Military Police Company, 165th Military Police Battalion Painted P64 M1 Helmet Liner Japanese Air Force The buckle is maker stamped

The buckle is maker stamped and dated on the leather tab:

so in this case "Tsukahara" was their family name

It can however still be read in the light

We can faintly see the Steyr stock cartouche

Companies B and L were engaged

Original U.S. Vietnam War Era 723rd Military Police Company, 165th Military Police Battalion Painted P64 M1 Helmet Liner Japanese Air Force The buckle is maker stampedOriginal Item: Only One Available. This is an exemplary Vietnam War Era "Infantry P64" helmet liner that was painted for the use of a member of the 723rd Military Police Company, which is a subordinate unit of the 165th Military Police Battalion. The 273rd Military Police Company was established on December 3, 1946, and was federally recognized as Company C, 163rd Military Police Battalion. During the aftermath of the Korean War, the company was