around circumference: SVPER ASPIDEM ET BAZILISCVM etc.; upper center in Greek: Glory to God in the Highest
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.
- Hartt, Frederick. 'Review: Charles Seymour Jr., Masterpieces of Sculpture from the National Gallery of Art." College Art Journal 10 (Winter 1951): 205.
- Pollard, John Graham. Renaissance Medals. The Collections of the National Gallery of Art Systematic Catalogue. 2 vols. Washington, 2007: 2:no. 598, repro.