Trefoil mouth and frieze of sphinxes in relief. The sphinxes are identical— they are stamped form a single mold. In fact, at the point just to the left below the spout, one can see that the artist ran out of space and omitted the rear half of one sphinx.
Richter, Gisela M. A. 1924. "Early Greek and Etruscan Vases: Recent Accessions." Bulletin of the Metropolitan Museum of Art, 19 (4): p. 100.
Richter, Gisela M. A. 1933. "The Department of Classical Art: Extension and Rearrangement." Bulletin of the Metropolitan Museum of Art, 28 (2): p. 28, fig. 1.
de Puma, Richard Daniel. 2013. Etruscan Art in the Metropolitan Museum of Art. no. 4.72a, pp. 87, 96, New Haven and London: The Metropolitan Museum of Art.