Located in Tholos Trench E, beneath floor, beneath layer III.
Diameter 1m. Cf. P 4952 with fragment from this deposit and E-F 12-14.2.
Similar the well filling, H 6:5 Originally called H 12:5
Ann Steiner ... Ca. 470-460 B.C.
Fills associated with construction of New Bouleuterion, i.e. inside porch, unused foundation trenches on west side and south side ... Down to last quarter of 5th c. B.C.