20 ECU - Harald V Bergen Brygge

The ECU — European Currency Unit — was a basket currency used as an accounting unit within the European Monetary System from 1979 until it was replaced by the euro in 1999. Norway, not being an EU member, had no institutional obligation to issue ECU-denominated coins, but several non-member states did so anyway throughout the late 1980s and 1990s, producing collector-oriented legal tender pieces that exploited the ECU's prestige without any formal monetary agreement with Brussels. Bergen Brygge — the old Hanseatic wharf district — was a UNESCO World Heritage Site designated in 1979, giving this issue a concrete commemorative hook beyond the currency novelty itself.