An alchemist concentrates on a book in his study, while Death next to him tells him "My dear Herr Collaborator, you are are too hardworking". Gouache painting.

Licence: Public Domain Mark

Credit: An alchemist concentrates on a book in his study, while Death next to him tells him "My dear Herr Collaborator, you are are too hardworking". Gouache painting. Wellcome Collection. Source: Wellcome Collection.