Three Persons Viewing the Gladiator by Candlelight by William Pether https://www.rawpixel.com/image/8969932/three-persons-viewing-the-gladiator-candlelight-william-petherFree Image from public domain licenseA philosopher giving a lecture on the orrery. Mezzotint by W. Pether, 1768, after Joseph Wright of Derby. https://www.rawpixel.com/image/14005312/image-face-person-spaceFree Image from public domain licenseA philosopher giving an astronomical lecture on an orrery. Mezzotint by W. Pether after J. Wright, ca. 1780. https://www.rawpixel.com/image/13999082/image-face-person-artFree Image from public domain licenseA philosopher giving a lecture on the orrery. Mezzotint by W. Pether, 1768, after Joseph Wright of Derby. https://www.rawpixel.com/image/14005096/image-face-person-artFree Image from public domain license