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): 884
Catalogue of A Rare Collection of Antique and Medieval Gems, (...) for the Charity Organization Society (...) of NY; Tiffany, 10.-16.3.1902: lot 993
Comments: Photo, impression and identification: R. Schmidt.
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