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.
Catalogus der Tentoonstelling van Teekeningen en Schetsen door Theo van Doesburg page . nl Catalogus nl Agnita Feis and anonymous Catalogus der Tentoonstelling van Teekeningen en Schetsen door Theo van Doesburg PDold
Page 2023 Free-images.com. All images are Public Domain