A good example of a genuine issued Vietnam War era USMC (U.S. Marine Core) OG 107 cotton sateen P64 long sleeved utility shirt. It features the USMC ink markings to left chest, the shirt has a pen pocket and domed plastic buttons. Missing the top size label and manufacture label has faded over time, made in the mid to late 60’s.
Additional size information: Armpit to armpit 21" (up to 42" chest). Armpit to Cuff: 21½". Collar 15".