This bracelet is from the 20th Olympic games that took place in Munich Germany in 1972. It is a silver coin on a silver chain bracelet. The chain is 7 inches long. The coin is 7/8 inch in diameter. I refer to this as silver and I think it is a silver alloy. It is not marked as to content but is the wrong color to be nickle or rhodium. Not a thing wrong with the coin or bracelet.