Caption:
Hans Conrad Gyger, Swiss glass painter, mathematician, surveyor and cartographer in Zurich, 15991674. Conrad Gyger Tigurinus. Copperplate engraving after an illustration by Joachim von Sandrart from his LAcademia Todesca, della Architectura, Scultura & Pittura, oder Teutsche Academie, der Edlen Bau- Bild- und Mahlerey-Kunste, German Academy of Architecture, Sculpture and Painting, Jacob von Sandrart, Nuremberg, 1675.