Paul Ehrlich (1854-1915) and Dr Sachs. Probably at the Frankfurt Serum Institute
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Paul Ehrlich (1854-1915) and Dr Sachs. Probably at the Frankfurt Serum Institute. Wellcome Collection. Source: Wellcome Collection.
![no text alternative](https://iiif.wellcomecollection.org/image/M0013270/full/800%2C/0/default.jpg)