ECU - Servus Europa Joseph Lanner

Joseph Lanner was the Viennese composer who, alongside Johann Strauss I, essentially invented the commercial Viennese waltz in the 1820s and 30s — the two were briefly business partners before a bitter falling-out that split Vienna's dance-hall audience into rival camps. The ECU denomination itself was never legal tender in Austria; these were issued purely for the collector market tied to the European Currency Unit, a basket currency precursor to the euro that existed from 1979 until monetary union rendered it obsolete in 1999.