Beazley, Vases in America, p. 8. ARV² 53. B. Cohen, The Literate Potter: A Tradition of Incised Signature on Attic Vases, MetMusJ 26, 1991 [pp. 49-95], p. 89, note 68. H.P. Isler, Museum Helveticum 38 ... Agora 30 88 ... ARV² 53, 1 ... ARV² 54, 3 ... CVA, Berlin [DDR 3], pls. 1-3 [112-114]