Thought I'd share this Vietnam era M1C with tac marks for the 71st Airborne Infantry Brigade.
The 71st AIB was part of the Texas Army National Guard from 1968-1973. They never saw overseas service during Vietnam.
Liner is dated 1968. Shell is actually a rear seam, swivel loop Shclueter, which would date it to WWII. Obviously received a repaint post-war.
Set came out of Texas, which jives with the 71st's lineage. Clearly a set that has been together since it's use in the 60's/70's.