A conversation with Dr. Steven Zucker and Dr. Beth Harris in front of The Severan Tondo, c. 200 C.E., 30.5 cm, tempera on wood (Altes Museum, Staatliche Museen, Berlin)
Additional resources:
Klaus Forschen, The portraits of Roman emperors and their families,” in The Emperor and Rome: Space, Representation, and Ritual, edited by Björn C. Ewald and Carlos F. Noreña (Cambridge University Press, 2010)
Eric R. Varner, Mutilation and Transformation : Damnatio Memoriae and Roman Imperial Portraiture (Brill 2004)