Hi, my name is*****'m a certified appraiser, and I'd be happy to help.
This is what's known as an equator token.
(Battleship afloat with Neptune below) / MAY 20, 1936 // THIS CERTIFIES THAT THE BEARER / HAS BEEN / DULY initiated/ (nameplate) / INTO THE SOLEMN / MYSTERIES OF THE / REALM OF / THE RAGING MAIN Bronze 24mm (Shellback Medal - Unlisted)
The shellback medal was presented when the U.S.S. Arizona crossed the equator.
A number of ships had these, but those from the Arizona are notable because of it's later history. U.S.S. ARIZONA 1916-1942. The sinking of the U.S.S. Arizona by the Japanese attack on Pearl Harbor propelled America into World War II.
Depending on condition, the resale value is in the range of $400 - $600.
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