These are membership badges, like the ones you buy today.If I understood correctly, these pins were given to members attending the Annual Meeting and Symposium in the early days, instead of S&W challenge coins. Apprarently the enamel over copper plate pin looked very amateurish, and a lot of members were extremely unhappy with it, to the point that Mr. Jinks wrote apoligiy letters to members that hated it. I must say, it's...different. However this is what makes true collectors items; not embellished "limited editions."
Don, seeing 3 of those Buffalo patches makes me break the 10th Commandment every time. You shouldn’t make me do that!