4 August 1971 ... -10.15--10.05m.
4 August 1971 ... Agora
Early Turkish ... Agora
4 August 1971 ... Well Q 21:5; -9.90m to -10.05m
10th A.D ... Agora
Middle of 6th B.C ... -6.25--5.1m.
5th B.C ... Well Q 21:3; To -4.40m
Fourth quarter of 5th B.C ... Fourth quarter of 5th B.C.