Well at 21/Ε (beneath Library of Pantainos).
The clearing of the well was abandoned because of a cave-in of the rock walls. Heavy dumped filling, the proportion of fine black table ware high ... Ca. 440-425 B.C.
Cistern on the lower Acropolis slopes, west of Panathenaic Way; dumped filling of 1st century B.C.
Bottom diameter 3.90m. Cistern with connecting draw-shaft and a dead end tunnel dates from Late Hellenistic ... 1st century B.C.
