Scarce, only 15,000 minted. Before it was decided that the "Euro" would be the denomination for the new Euroipean currency, the "Ecu" was proposed, and some Ecu coins were struck. This proof is among the earliest issues. It commemorates Charles V and the 30th Anniversary of the Treaty of Rome. The 50 Ecu coin weighs 17.28 gm. of 900 fine gold.