License, verbatimCC0
Museum Rotterdam, via Europeana: image published under Creative Commons Zero 1.0 (http://creativecommons.org/publicdomain/zero/1.0/). Rights statement as supplied by the contributing institution to Europeana.
Heinrich Theodor Becker. Dameshoedje, ovaal model zonder rand met verzonken bol, donkerblauw vilt met lila paars voile en garnering van groene bloemen van stof, 1970. Europeana (aggregator, 4,000+ institutions).