- c. 1960-1985, Purchased by Lisa and Leonard Baskin, Leeds, MA
- 2000, Gift of Lisa and Leonard Baskin to the National Gallery of Art, Washington
- Museum's website, 2nd August 2011
- 2007 Pollard
John Graham Pollard. Renaissance Medals, The Collections of the National Gallery of Art Systematic Catalogue, 2 vols, Washington, 2007, 2, n. 901, repr.