The square shape of the face with pronounced cheekbones, the upward-gazing eyes, the short cap-like hair and the cropped facial hair are typical of 3rd century portraiture. According to Kleiner (pp. 381-382 in Roman Sculpture), private portraiture "shows their indebtedness to contemporary imperial portraiture, especially to their military iconography...even though they often revealed the personal predilections of the patron and sometimes his position in Roman society." For similar examples, see a portrait of Elagabalus, reworked as Severus Alexander, no. 52. in Varner, ed., From Caligula to Constantine: Tyranny & Transformation in Roman Portraiture; for an unidentified private portrait, once thought to be Emperor Trebonianus Gallus, see no. 49 in Johansen, Roman Portraits III, Ny Carlsberg Glyptotek.