Stampfle, Felice, with the assistance of Ruth S. Kraemer and Jane Shoaf Turner. Netherlandish Drawings of the Fifteenth and Sixteenth Centuries and Flemish Drawings of the Seventeenth and Eighteenth Centuries in the Pierpont Morgan Library. New York : Pierpont Morgan Library, 1991, p. 44, no. 71, repr.
Watermark: fragment showing two small shapes, like divided descender of the Gothic letter "P" (cf. Briquet 8608 etc.; last quater of the 15th century).