https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14021087
Astronomy: seven astronomers, forming the allegorical titlepage to Dirck Rembrantz van Nierop, Nederduytsche astronomia. Engraving.
Original public domain image from Wellcome Collection
Public DomainFree CC0 image for Personal and Business use