Devaulx, Jacques (16th century); French. Medium: pen and ink and wash on paper. Date: 1583. With graduated arc of 60 degrees used in navigation and surveying for measuring angular distance of objects by means of mirrors; Jacques de Vaulx was a celebrated pilot of Le Havre; grand navigateur et cartographe Havrais; Provenance: Bibliotheque Nationale, Paris, France / Giraudon. Photographic Rights The Bridgeman Art Library.