Licence: Public Domain Mark
Credit: A pig and three hens coming to feed from a trough. Etching. Wellcome Collection. Source: Wellcome Collection.
![no text alternative](https://iiif.wellcomecollection.org/image/V0021679/full/800%2C/0/default.jpg)
Licence: Public Domain Mark
Credit: A pig and three hens coming to feed from a trough. Etching. Wellcome Collection. Source: Wellcome Collection.