Hermes was the guardian of boundaries, as well as the protector of travelers. Although these small bronze head probably decorated Roman furniture, they represent the god as he appeared on the top of many rectangular stone pillars called herms that marked boundaries and stood at gateways and entrances in Greek cities and towns.
Richter, Gisela M. A. 1915. Greek, Etruscan and Roman Bronzes. no. 235, pp. 121-22, New York: Gilliss Press.
Richter, Gisela M. A. 1950. The Sculpture and Sculptors of the Greeks, 3rd edn. pp. 238, 561, fig. 629, New Haven: Yale University Press.
Richter, Gisela M. A. 1953. Handbook of the Greek Collection. pp. 78, 219, pl. 59g, Cambridge, Mass.: Harvard University Press.
Pinney, Gloria Ferrari and Brunilde Sismondo Ridgway. 1979. Aspects of Ancient Greece no. 110, pp. 226-27, Allentown, Penn.: Allentown Art Museum.
Kossatz-Deissmann, Anneliese, Brigitte Servais-Soyez, Fulvio Canciani, Giovannangelo Camporeale, Hans Peter Isler, Ingrid Krauskopf, Odette Touchefeu-Meynier, Marcel Le Glay, and Dr. Jean-Charles Balty. 1990. Herakles-Kenchrias, Lexicon Iconographicum Mythologiae Classicae, Vol. 5. Hermes, no. 72a, Zürich: Artemis Verlag Zurich und Munchen.