The above coin is mentioned in Krause Publication "Unusual Coins of the World", 4th edition referred as X#1 on page 493. These are known as California State Fantasy Coinage. It is dated 1974, .999 Silver, 31.1030g coin. The theme is World Trade. The above shown coin is known as Universaro. Over 2,000,000 pieces have been produced dated 1972 to 1975 reported by their mint.
Chiefa Coins