Licence: Public Domain Mark
Credit: Christoph Horch. Line engraving by J.E. Gericke. Wellcome Collection. Source: Wellcome Collection.
![no text alternative](https://iiif.wellcomecollection.org/image/V0002876/full/800%2C/0/default.jpg)
Licence: Public Domain Mark
Credit: Christoph Horch. Line engraving by J.E. Gericke. Wellcome Collection. Source: Wellcome Collection.