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): 224
Comments: THIS GEM, T226 OR 1839-2335 WAS ONCE IN THE HALLUM COLLECTION AND SOLD IN THE CHRISTIE'S AUCTION 14/15.07.1865, LOT152