OLD 1970’s Vintage Pittsburgh Steelers Superman Shirt VERY RARE

OLD 1970’s Vintage Pittsburgh Steelers Superman Shirt VERY RARE

A very OLD 1970’s Pittsburgh Steelers Superman T shirt. I believe it is from 1977 it was my dads shirt when in college. It’s a Hanes shirt size medium 38-40. It does have some damage as pictured there are a few small holes. I have searched the internet and have not come across another one. One of a kind!! Great find for any football Steelers fan!! Please ask any questions. Ty :)