Hello there. I have had this liner in my possession for as long as I can remember and I think it is time for me to start learning more about it. So here's what I know:
It was made by Firestone
It is an M1c liner with a yellow 40
It came with the original parachutist "It's your head--keep it" pamphlet
The sweatband was made in 1974
however, what I can't seem to figure out is what year was this liner made. I hear things of p64 and p67, but what do these mean? Thanks everyone for looking!
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