references:"Agora:Object:P 20521"

About one-fourth preserved, center of dome missing; heavily restored. Scraped groove surrounds dome; trace of ridge around center of dome. Shiny black glaze, patch on inside left unglazed unintentionally ... 3rd century?

[Agora Notebook Page] Ω-9-7 (pp. 1603-1604)

Moldmade Bowl Fragment. Cistern. Black Glaze Pyxis Lid ... Ω-9 1603, 1604 P 20518 Ω 1186 P 20516 P 20519 P 20520 P 20521 N 20:4 P 20518 P 20519 P 20520 P 20521 ... 1 February-17 March 1938

[Agora Publication Page] Agora 29.1, s. 400, p. 361

Cistern. Rotroff, 1991, no. 23, p. 71, pl. 19. Watzinger, 1924, G 2, p. 68, pl. 50. Rotroff, 1991, no. 46, p. 80, pl. 26. Jacopi, 1932, no. 13868, pp. 124-125, fig. 7. Macridy, 1911, p. 198, fig. 10 on ... Agora 29 361 P 22931 P 7089 P 14796 P 11283 P 5742 P 7370 P 26327 P 20521 R 13:9 U 26:1 B 13:8 E 14:1 E 3:1 N 20:4 ... 275-265 B.C.