Well at 40/Λ, in the "plataia" ca. 600m north of the terrace wall and ca. 10m east of the Valerian wall. Top diameter of 1.00m, bottomm diameter 0.95m
The shallowness of the shaft, and the fallen condition ... 550-500 B.C.
Construction filling of the Poros Building west of the Areopagus. Patch of stony fill beneath the courtyard. Accumulation of the second quarter of the 5th c., deposited in the last quarter ... Ca. 475-450 B.C. and later