https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14008428![[Illustrated leaflet advertising appearances by "De Tweelingen van Siam", Chang and Eng, in Amsterdam, June 1836. May 1837].](https://images.rawpixel.com/image_social_portrait/cHJpdmF0ZS9sci9pbWFnZXMvd2Vic2l0ZS8yMDI0LTAyL2xyL3djdGpneDQ5NnotaW1hZ2UuanBn.jpg)
[Illustrated leaflet advertising appearances by "De Tweelingen van Siam", Chang and Eng, in Amsterdam, June 1836. May 1837].
Original public domain image from Wellcome Collection
Public DomainFree CC0 image for Personal and Business use