Licence: In copyright
Credit: Phineas Simon Abraham. Photogravure, ca. 1913. Wellcome Collection. Source: Wellcome Collection.
![no text alternative](https://iiif.wellcomecollection.org/image/V0025942/full/800%2C/0/default.jpg)
Licence: In copyright
Credit: Phineas Simon Abraham. Photogravure, ca. 1913. Wellcome Collection. Source: Wellcome Collection.