Licence: Public Domain Mark
Credit: Joseph Clark, a contortionist. Line engraving by Thornton. Wellcome Collection. Source: Wellcome Collection.
![no text alternative](https://iiif.wellcomecollection.org/image/V0007037/full/800%2C/0/default.jpg)
Licence: Public Domain Mark
Credit: Joseph Clark, a contortionist. Line engraving by Thornton. Wellcome Collection. Source: Wellcome Collection.