Portrait of Wilhelm von Waldeyer-Hartz
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Portrait of Wilhelm von Waldeyer-Hartz. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Portrait of Wilhelm von Waldeyer-Hartz. Wellcome Collection. Source: Wellcome Collection.