wikimedia_922px-Grand_opening_of_the_first_Dada_exhibition,_Berlin,_5_June_1920

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Grand opening of the first Dada exhibition, Berlin, 5 June 1920
Dada Exhibition, Berlin, 5 June 1920, See page for author, Public domain, via Wikimedia Commons (Cropped)

Grand opening of the first Dada exhibition, Berlin, 5 June 1920