around circumference: OB CIVES SERVATOS; across bottom: AGITIS IN FA / TVM
(Aimé Charles) Horace His de la Salle [1795-1878], Paris; (his estate sale, Sotheby's, London, 22-25 November 1880, 2nd day, no. 130); 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.
- Fusco, Laurie and Gino Corti. Lorenzo de' Medici: Collector and Antiquarian. Cambridge, UK, 2006: 91 fig. 91, 92.
- Pollard, John Graham. Renaissance Medals. The Collections of the National Gallery of Art Systematic Catalogue. 2 vols. Washington, 2007: 1:no. 288, repro.