Crédits photo

(fr) Rythmes - http://europeana.eu/portal/record/2063621/FRA_280_010.html ; Delaunay, Robert, 1885-1941;
(fr) Centre Pompidou - Musée national d'art moderne - Centre de création industrielle - CC BY-NC-SA - http://creativecommons.org/licenses/by-nc-sa/4.0/

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