Pua Kealoha was a Olympic 1920 champion for the USA. This medal was for the 100 yard out door swim in 1922. It's approximately the size of a silver dollar. With a metal scratch test on the rim, I could see a brownish red indicating that its .800 silver. Not sure where this event was, but i've been told Honolulu Harbor by the old timers. Best of luck in your bidding.