BALaT. Licensed under CC BY 4.0 KIK-IRPA, Brussels (Belgium), cliché X035998] https://creativecommons.org/licenses/by/4.0/ Digitally Enhanced
Universitätsbibliothek Heidelberg, Monthly magazine for all areas of Christian art and art studies as well as for the entire art life - 19.1922/​1923. Public Domain
Universitätsbibliothek Heidelberg, Monthly magazine for all areas of Christian art and art studies as well as for the entire art life - 3.1906/​1907. Public Domain
Lithuanian Museum Collections, Attributions to Creative Commons https://creativecommons.org/licenses/by/4.0/ Digitally Enhanced
Universitätsbibliothek Heidelberg. Monthly magazine for all areas of Christian art and art studies as well as for the entire art life - 20.1923/​1924. Public Domain
National Museum, Digitally Enhanced, Public Domain
National Cultural Heritage Agency, 541.039, Attributions to Creative Commons http://creativecommons.org/licenses/by-sa/3.0/ Digitally Enhanced
Reminders and devotional cards (1890-1975) National Library of Spain, Public Domain
Berlin State Museums, Gemäldegalerie. Attributions to Creative commons https://creativecommons.org/publicdomain/mark/1.0/ Digitally Enhanced
Bavarian State Painting Collections - Alte Pinakothek Munich. Attributions to Creative Commons https://creativecommons.org/licenses/by-sa/4.0/ Digitally Enhanced
Reminders and devotional cards (1890-1975) National Library of Spain, Public Domain
National Heritage Institute of Romania, Digitally Enhanced, CC-BY-SA 4.0, creativecommons.org/licenses/BY-SA/4.0/DEED.EN
Welcome Collection, 18th-century Japanese watercolors of plants and landscapes.
Public Domain