National Cultural Heritage Agency of Netherlands / 332536, Digitally Enhanced, http://creativecommons.org/licenses/by-sa/3.0/
BALaT, Licensed under CC BY 4.0 KIK-IRPA, Brussels (Belgium), cliché KN001228] https://balat.kikirpa.be/copyright/copyright_en-GB.php, https://creativecommons.org/licenses/by/4.0/ Digitally Enhanced
Sörmlands Museum, Digitally Enhanced, Attribution to Creative Commons https://creativecommons.org/licenses/by/4.0/
Public Domain
The Holy Sacrifice of the Mass: The Perpetual Sacrifice of the Catholic Church by Josef Merk
National Museum in Denmark, Digitally Enhanced, Attribution to Creative Commons https://creativecommons.org/licenses/by/4.0/
Public Domain
The Holy Sacrifice of the Mass: The Perpetual Sacrifice of the Catholic Church by Josef Merk
BALaT, Licensed under CC BY 4.0 KIK-IRPA, Brussels (Belgium), cliché X011911] https://balat.kikirpa.be/copyright/copyright_en-GB.php, https://creativecommons.org/licenses/by/4.0/ Digitally Enhanced
National Cultural Heritage Agency, Digitally Enhanced, Attributions to Creative Commons http://creativecommons.org/licenses/by-sa/3.0/
Vänersborgs Museum via DigitaltMuseum, Purchased by public subscription, Digitally Enhanced, Creative Commons License https://creativecommons.org/licenses/by-sa/4.0
Public Domain
BALaT, Licensed under CC BY 4.0 KIK-IRPA, Brussels (Belgium), cliché Z004450] https://balat.kikirpa.be/copyright/copyright_en-GB.php, https://creativecommons.org/licenses/by/4.0/ Digitally Enhanced
National Cultural Heritage Agency of Netherlands via Europeana, Digitally Enhanced, http://creativecommons.org/licenses/by-sa/3.0/
BALaT, Licensed under CC BY 4.0 KIK-IRPA, Brussels (Belgium), cliché X003967] https://balat.kikirpa.be/copyright/copyright_en-GB.php, https://creativecommons.org/licenses/by/4.0/ Digitally Enhanced
Museum Catharijneconvent
Public Domain
Library of Congress
Public Domain