Portrait of Albrecht von Graefe, head only
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Portrait of Albrecht von Graefe, head only. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Portrait of Albrecht von Graefe, head only. Wellcome Collection. Source: Wellcome Collection.