Cistern System #1a: Shaft (Manhole) at 10/ΞΗ (10-11/ΞΖ-ΞΗ). Filling consistently late Hellenistic in hole and in passage; probably 1st c.
B.C. Coins:
26 May 1936 #1 ... 110-75 B.C.
Within the precinct of the Hephaisteion, about 10m. north of the north stylobate of the temple.
Flask-shaped pit (W. (bottom) 3.14 x 2.73m) probably originally intended as a cistern; used for dumping ... Ca. 375-310 B.C.-Byzantine