Prendeville, J.: Explanatory catalogue of the proof-impressions of the antique gems possessed by the late Prince Poniatowski and now in the possession of John Tyrrell, Esq. (1841): 68
Monson, (Lord)
Christie's, London: June 9, 1851, lot 1
Bonhams, London: 5.12.2002
Comments: SET IN CORDED GOLD MOUNT, WITH A LINE OF BLACK ENAMEL.