I found this today at an antique store. It’s the old blue and gold, Sullivan High Pirates. Looks like a booster item to be. I can’t even hazard a guess as to the date. I went there 1961-1963 and don’t recall ever seeing one. But, then, I never paid much attention to sports.
It’s 1.25″ in diameter with a lethal-looking pin on the back. Those were dangerous times…