Cover slabs over the Great Drain ... Nomlas (31-E-42) Horizontal (normal) ... 20 July 1931
Investigating the Great Drain ... 31-E-48 (Nomlas.) Horizontal (normal) ... 22 July 1931
Trench to the west of the Great Drain ... Horizontal (normal) ... 5 May 1934
View of the Great Drain in front of the Metroon ... north Horizontal (normal) ... 15 May 1935
New course of the Great Drain ... northeast Horizontal (normal) ... 1937
Great Drain opposite the northeast corner of the Metroon, detail of masonry ... southwest 1470 Horizontal (normal) ... 19 July 1961
