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): 1203
Pirzio Biroli Stefanelli, L.: La collezione Paoletti. Stampi in vetro per impronte di intagli e cammei vol.I (2007): III.10
Comments: Pyrgoteles IN TYRRELL
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