Hugo Grotius: his tomb in Delft. Pen and ink drawing by P. Camper. https://www.rawpixel.com/image/13986345/hugo-grotius-his-tomb-delft-pen-and-ink-drawing-camperFree Image from public domain licenseAntiquaries: twenty portraits of historians. Engraving by J.W. Cook, 1825. https://www.rawpixel.com/image/13979012/antiquaries-twenty-portraits-historians-engraving-jw-cook-1825Free Image from public domain license