Oh yes, I found the history of the smiley, (Forrest Gump didn't invent it) but, alas, not shirt like this one. There is no brand, just a small white tag "made in U.S.A. 50% polyester 50% cotton LARGE"

I can't seem to find this shirt for a comparison anywhere on the internet. I got it from an estate that had clothing ranging from the 40s to the 70s. Any clues on the value?