https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13997025
John Locke, Benjamin Franklin, Joseph-Louis Lagrange, and Galileo Galilei: profile portraits taken from medals. Line engraving by J. Bate, 1836.
Original public domain image from Wellcome Collection
Public DomainFree CC0 image for Personal and Business use