AMERICAN MOTORCYCLE ASSOCIATION MEMBERSHIP PINS. I was told that the pin at the top left hand corner was the year 1 membership pin. After more research I don't think that is correct. But you do get years 2-25 and 3 extras.Years 10,15,20,and25 are the four bottom pins in the right column with the genuine fake diamonds,rubies,and sapphires. The other two, I just thought I'd throw in. The backs are the type you put on with set screws so you won't lose the pins as easy. For your convenience I taped an Allen wrench to the back. Condition is used. Thanks for looking!!