Bronze portrait bust of the emperor Gaius (Caligula)

Until 1923, collection of Ludwig and Frida Mond, London; acquired in 1923, purchased from Mrs. Mond.

Richter, Gisela M. A. 1924. "Greek and Roman Bronzes: Recent Acquisitions." Bulletin of the Metropolitan Museum of Art, 19(3): pp. 70–71, fig. 6.

Richter, Gisela M. A. 1927. Handbook of the Classical Collection. pp. 294, 296, fig. 207, New York: The Metropolitan Museum of Art.

Richter, Gisela M. A. 1929. The Sculpture and Sculptors of the Greeks. p. 112, fig. 451, New Haven: Yale University Press.

Richter, Gisela M. A. 1930. Handbook of the Classical Collection. pp. 294, 296, fig. 207, New York: The Metropolitan Museum of Art.

Metropolitan Museum of Art. 1936. Roman Art, A Picture Book. fig. 18, New York: The Metropolitan Museum of Art.

Richter, Gisela M. A. 1940. "A Rearrangement of Roman Portraits." Bulletin of the Metropolitan Museum of Art, 35(10): p. 201.

Richter, Gisela M. A. 1941. Roman Portraits, Vol. 1. no. 18, p. 4, New York: The Metropolitan Museum of Art.

Richter, Gisela M. A. 1948. Roman Portraits, 2nd edn. no. 39, p. iii, New York: The Metropolitan Museum of Art.

Krumme, Michael. 1980. "Eine gewichtsbuste in der Munchner Antikensammlungen." Hefte des Archäologischen Seminars der Universität Bern, Vol. 6. Bern: Institut für Klassische Archäologie der Universität Bern.

Varner, Eric R. 2000. From Caligula to Constantine: Tyranny and Transformation in Roman Portraiture no. 7, pp. 102–3, 105, Atlanta: Michael C. Carlos Museum, Emory University.

Dahmen, Karsten. 2001. Untersuchungen zu Form und Funktion kleinformatiger Porträts der römischen Kaiserzeit. no. 43, p. 158, pl. 43, Münster: Scriptorium.

Zanker, Paul. 2016. Roman Portraits: Sculptures in Stone and Bronze in the Collection of the Metropolitan Museum of Art. no. 22, pp. 77–78, New York: The Metropolitan Museum of Art.

Zanker, Paul, Seán Hemingway, Christopher S. Lightfoot, and Joan R. Mertens. 2019. Roman Art : A Guide through the Metropolitan Museum of Art's Collection. no. 151, pp. 304–5, New York: Scala Publishers.