Vintage 10k Gold Top 20 Year Membership Pin Brotherhood Of Railroad Trainmen B of RT. Shipped with USPS first class. You will receive the exact pin pictured. It is pre-owned, however, in great shape. The pin is marked 10k top with a union mark. It's smaller than the size of a dime in the pin without the back. Weighs one gram. The spinner back is tough to spin on all the way. Will be shipped very fast and safe.