H. A. Thompson, The Tholos of Athens and its Predecessors, Hesperia, Supplement IV, p. 101. L'Orange, Studien, figs. 8, 9. Hekler, Bildniskunst, pl. 298. Graindor, Cosmètes, no. 20, p. 349, fig. 24. Graindor, ... Agora 1 63 S 659 ... Gallienus ... P 7