Cooper Hewitt, Smithsonian Design Museum. Dating between 1770–1790. Public domain.
Wellcome Collection. Reference
Wellcome Collection 3058i, public domain.
Wellcome Collection. Dating between 1800 and 1899, public domain.
Georg-August-Universität Göttingen. University Art Collection. Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) https://creativecommons.org/licenses/by-sa/4.0/ Digitally Enhanced.
The Master\'s Complete Works in Illustrations. Publication date in 1910, public domain.
Bayerische Staatsgemäldesammlungen - Staatsgalerie in der Burg zu Burghausen. Dating 1475. Attribution to Creative Commons (CC BY-SA 4.0) https://creativecommons.org/licenses/by-sa/4.0/. Digitally Enhanced.
Skansen via DigitaltMuseum, Digitally Enhanced, Attributions to Creative Commons (CC BY-SA 4.0) https://creativecommons.org/licenses/by-sa/4.0/
Philadelphia Museum of Art
Public Domain
Europeana, Digitally Enhanced, Attributions to Creative Commons (CC BY-SA 4.0) https://creativecommons.org/licenses/by-sa/4.0/
Bavarian State Painting Collections, Digitally Enhanced, Attributions to Creative Commons (CC BY-SA 4.0) https://creativecommons.org/licenses/by-sa/4.0/
National Museum Brukenthal, Digitally Enhanced, Attributions to Creative Commons (CC BY-SA 4.0) https://creativecommons.org/licenses/by-sa/4.0/
Vänersborgs Museum via DigitaltMuseum, Digitally Enhanced, Attributions to Creative Commons (CC BY-SA 4.0) https://creativecommons.org/licenses/by-sa/4.0/
Vänersborgs Museum via DigitaltMuseum, Digitally Enhanced, Attributions to Creative Commons (CC BY-SA 4.0) https://creativecommons.org/licenses/by-sa/4.0/
BALaT. Licensed under CC BY 4.0 KIK-IRPA, Brussels (Belgium), cliché KM010188] https://creativecommons.org/licenses/by/4.0/, Digitally Enhanced.
BALaT. Licensed under CC BY 4.0 KIK-IRPA, Brussels (Belgium), cliché X118330] https://creativecommons.org/licenses/by/4.0/, Digitally Enhanced.
Vänersborgs Museum via DigitaltMuseum, Digitally Enhanced, Attributions to Creative Commons (CC BY-SA 4.0) https://creativecommons.org/licenses/by-sa/4.0/
Bavarian State Painting Collections, Digitally Enhanced, Attributions to Creative Commons (CC BY-SA 4.0) https://creativecommons.org/licenses/by-sa/4.0/
BALaT. Licensed under CC BY 4.0 KIK-IRPA, Brussels (Belgium), cliché B111265] https://creativecommons.org/licenses/by/4.0/, Digitally Enhanced.
BALaT. Licensed under CC BY 4.0 KIK-IRPA, Brussels (Belgium), cliché M240698] https://creativecommons.org/licenses/by/4.0/, Digitally Enhanced.
BALaT. Licensed under CC BY 4.0 KIK-IRPA, Brussels (Belgium), cliché M206161] https://creativecommons.org/licenses/by/4.0/, Digitally Enhanced.