around top circumference: OBSTANTE GENIO
Gustave Dreyfus [1837-1914], Paris; his heirs; purchased with the entire Dreyfus collection 9 July 1930 by (Duveen Brothers, Inc., London, New York, and Paris); sold 31 January 1944 to the Samuel H. Kress Foundation, New York; gift 1957 to NGA.
- Renaissance Portraits, Smith College Museum of Art, Northampton, Massachusetts, 1953, no cat.
- Pollard, John Graham. Renaissance Medals. The Collections of the National Gallery of Art Systematic Catalogue. 2 vols. Washington, 2007: 1:no. 439, repro.