An itinerant medicine vendor performing on stage with two assistants and a monkey, selling his wares to an excitable crowd. Coloured wood engraving by J. Oortman.

Licence: Public Domain Mark

Credit: An itinerant medicine vendor performing on stage with two assistants and a monkey, selling his wares to an excitable crowd. Coloured wood engraving by J. Oortman. Wellcome Collection. Source: Wellcome Collection.