1940's~1950's We call runner's tag
1950's~1970's
1970's~1990's
These tags excerpted it from the tag put up to a reverse weave and T-shirts.
1970's T-shirts are quite easy to find out in vintage shop.
Before that such as Runner's tag which seldom see and price are quite high if it's a good condition ¥40.000~.
I have some college t-shirts 1970's that was bar tag (also call 12 tag or 88 tag)
Thanks