around circumference: MARTIS CEDVNT HAEC SIGNA PLANETAE (These stars will be brought into the sphere of Mars)
Art market, London; purchased 1960s by Lisa and Leonard Baskin, Leeds, Massachusetts; gift 1996 to NGA.
- Pollard, John Graham. Renaissance Medals. The Collections of the National Gallery of Art Systematic Catalogue. 2 vols. Washington, 2007: 2:no. 636, repro.