Howland type 4 Howland type 12A K. Kübler, "Mitteilungen aus dem Kerameikos V. Spätantike Stempelkeramik," Ath. Mitt., LVI, 1951, p. 85 Kübler, p. 102, note 18 D. Burr, Hesperia, II, 1933, p. 193 Agora, IV, pp. 3-4 Agora, IV, p. 13
Hesperia, XXII, 1953, p. 65, no. 6, pl. 24 Broneer 646, fig. 123 Broneer 566, pl. XI Broneer 582, pl. XII Broneer type XXVII Kübler, p. 105 Allard Pierson Museum, Allgemeine Gids, Amsterdam, 1937, pl. XXXVII, no. 767 Pernice, p. 17, fig. 25 H. A. Thompson, Hesperia, XVII, 1948, p. 183