This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Andreas Sigismund Marggrafflip. Engraving of en Andreas Sigismund Marggraf flipped so he is facing left Scanned from cite book Weeks Mary Elvira The Discovery of the Elements Journal of Chemical Education Easton PA III Some EighteenthCentury Metals CITEREFWeeks from an engraving originally created in circa ca Author PDold thumb