Turfa, Jean M. Catalogue of the Etruscan Gallery of the University of Pennsylvania Museum of Archaeology and Anthropology. Philadelphia: University of Pennsylvania Museum of Archaeology and Anthropology, 2005. See: p. 258, no. 289; p. C7, pl. 31
Luce, Stephen B. "Etruscan Shell-Antefixes in the University Museum, Philadelphia." American Journal of Archaeology 24, no. 4. (1920): 352-369. See: pp. 368-369, fig. 10