This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
DelaunayWindows. Simultaneous Windows on the City by Robert Delaunay Kunsthalle Hamburg Robert and Sonia Delaunay Dchting Taschen Creator Robert Delaunay File Robert Delaunay Les Fentres simultane sur la ville Simultaneous Windows on the City cm Kunsthalle Hamburg Uncropped and accurate colors PDold Original upload log en Common