- 2001, Transfer from the Yale University Library, Numismatic Collection
- Gift of Dr. William Gilman Thompson, Ph.B. 1877
- Museum's website (accessed June 2017)
- 1907 Forrer
Leonard Forrer, Biographical dictionary of medallists, New York, 1907, vol. IV, p. 537 (could it be Centenary Exhibition of the Invention of Lithography, 1896?)
Identification of artist by Laure de Margerie, 23 May 2018.