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): 671
Monson, (Lord)
Christie's, London: 1853-110
Size: 24X40, 16X25
Comments: SET IN GOLD FILIGREE MOUNT, WITH A LINE OF BLACK ENAMEL.