Fig. 1. (upper part) Jan Gossaert, Design for a glass window with scenes from the life of Saint John the Evangelist, c. 1520. Pen and brown ink, brown wash, red chalk, squared for transfer in black chalk, incised construction lines – 60.2 x 21.9 cm. Florence, Gabinetto Disegni e Stampe degli Uffizi, inv. 1335 E-1338 E.