William Pether (British, c. 1738–1821)
License, verbatimCC0
The Cleveland Museum of Art: Open Access, Creative Commons Zero (CC0). Flagged share_license_status=CC0 in the museum's own record.
William Pether (British, c. 1738–1821). The Alchymist, in Search of the Philosopher's Stone, Discovers Phosphorus, and Prays for the Successful Conclusion of his Operation, as was the Custom of the Ancient Chymical Astrologers, 1775. The Cleveland Museum of Art.