Type 10; Early Argive-Corinthian Forms; Bridged Nozzles Well Type 11; Early Corinthian-Attic Forms; Central Sockets Broneer, Corinth, Vol. IV, Part II, Terracotta Lamps, Type I Hesperia, XVI, 1947, p. 237 Hesperia, XXV, 1956, p. 368, no. 70, fig. 2, pl. 59 Hesperia, II, 1933, p. 634 R. S. Young, Hesperia, Suppl. II, p. 146
1st half of 6th B.C. 1st quarter of 6th B.C. 2nd quarter of 6th B.C. Late 7th and well into 6th B.C.