Silver cups with medallions in low relief on the interior were favored luxury items in antiquity. Terracotta versions such as these suggest their appearance. One tondo shows the Eleusinian god Triptolemos in his snake-drawn chariot. The other cup features the head of the nymph Arethusa, taken from the reverse of a celebrated coin of Syracuse in Sicily. "Arethusa cups" were made and found principally in Campania.
Richter, Gisela M. A. 1953. Handbook of the Greek Collection. p. 132, Cambridge, Mass.: Harvard University Press.
Horsnaes, Helle Winge. 2000. "A Second Metamorphosis of Arethusa." Between Orient and Occident: Studies in Honour of P.J. Riis. no. 31, p. 52, Copenhagen: National Museum of Denmark.
Picón, Carlos A. 2007. Art of the Classical World in the Metropolitan Museum of Art: Greece, Cyprus, Etruria, Rome no. 192, pp. 166, 440, New York: The Metropolitan Museum of Art.