Corbelled loggia. Plan of a vault. Portrait of Niccolo III d'Este, Pisanello

Date: 15th century. Dimensions: height: 21.1 cm (8.3 in); width: 14.5 cm (5.7 in). Medium: black stone, pen and brown ink, print. Collection: Louvre Museum. Pisanello - Codex Vallardi 2276 r