WATERMARK fleur-de-lys on three mounds in circle (cf. Heawood 1460: Rom 1650); cf. Lewis/Lewis, p. 218, no. 23
LITERATURE Suzanne Boorsch, Michal and R.E. Lewis, The Engravings of Giorgio Ghisi, exhibition catalogue St. Louis Art Museum, The Metropolitan Museum of Art, New York and The Grunwald Center for the Graphic Arts, Los Angeles, New York 1985.