I recently stumbled upon some original 1960 Arnold Palmer u.s open pins, I cannot find no information on the internet about them, was hoping someone could shed some light on them, thank you.Pins
I can't help you identify these, but you'll have better luck in your own searches if you do not call them pins. They have fold-over metal tabs instead of pins so use the search term(s) "admission badge" or "admission tab".