ECU Europa sailing ship

The ECU was never legal tender — it existed as a unit of account, a creature of European monetary policy rather than sovereign coinage. These pieces were struck for the collector market during the final years before the euro made the ECU obsolete, issued under a kind of regulatory ambiguity that let individual member states produce ECU-denominated pieces without formal authorization as currency. Belgium, France, and others all issued competing versions through the mid-1990s, creating a fragmented series with no unified issuing authority.

The ECU was formally replaced by the euro at a fixed 1:1 rate on January 1, 1999.