A cow's udder with vaccinia pustules and human arms exhibiting both smallpox and cowpox pustules. Coloured engraving by J. Pass, 1811.
- Date:
- Published as the Act directs 1 May 1811
- Reference:
- 20186i
Licence: Public Domain Mark
Credit: A cow's udder with vaccinia pustules and human arms exhibiting both smallpox and cowpox pustules. Coloured engraving by J. Pass, 1811. Wellcome Collection. Source: Wellcome Collection.
