around circumference: PAR VIRTUS ONERI. (Virtue equal to his burden); in exergue: 1715.
Lisa and Leonard Baskin, Leeds, Massachusetts; gift 1997 to NGA.
- Pollard, John Graham. Renaissance Medals. The Collections of the National Gallery of Art Systematic Catalogue. 2 vols. Washington, 2007: 2:no. 887, repro.