Large Urn of Porphyry with its lid, found in the Mausoleum of St. Helen, transported by Pope Anastatius IV for his burial, and now in the Cloister of St. John Letran where it can now be seen..., tome 3, tavola 19 from "Le Antichità Romane" (Roman Antiquities)
Giovanni Battista Piranesi Italian
Publisher Angelo Rotili Italian
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