I got this from a friend; he gave it to me before he died. He was a good friend of mine and he wanted to make sure I had something of his before he died and this was one of his prized possessions. When they refurbished the USF Constellation they took some of the brass and cast these coins and gave them to special people. It says: US Constellation 1797. First coin struck from the parts of the Frigate Constellation. The first ship of the Navy.
I keep it, I treasure it.