1937 plaque memorializing debut of “The Blue Danube” at the Diana ballroom in 1867. Bezirksmuseum Leopoldstadt, 31 May 2023 (X70).

Bezirksmuseum Leopoldstadt, 2. Bezirk, Leopoldstadt, Wien, Vienna, Austria, Österreich, fotoeins.com

1937 plaque memorializing debut of “The Blue Danube” at the Diana ballroom in 1867. Bezirksmuseum Leopoldstadt, 31 May 2023 (X70).

Bezirksmuseum Leopoldstadt, 2. Bezirk, Leopoldstadt, Wien, Vienna, Austria, Österreich, fotoeins.com