lower center of image: Zustus Verus, pinx: J: B: J: sculp; et exc: / at the Time when Mr. ALGERNON SIDNEY was Ambassador... / ... Denmark by French Assistance or Example. / Pref: to Accot. of Denmark 4th Edit: P: 23.
Mary Jordan Collection.  (Frederick Mulder, London); Ruth Kainen, Washington, D.C., purchased October 20, 1986; Gift to NGA, 2012.
- Kainen, Jacob. John Baptist Jackson; 18th century master of the color woodcut. Washington, 1962: no. 33