https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13991669
An itinerant medicine vendor proudly presenting his wares to a small group of people. Line engraving by J. van de Velde after W. Buytewech.
Original public domain image from Wellcome Collection
Public DomainFree CC0 image for Personal and Business use