Wall of the Great Drain built of polygonal masonry ... Horizontal (normal) ... 7 May 1932
Wall of the Great Drain ... Horizontal (normal) ... 7 May 1932
Great Drain with inscribed stelae used as cover ... Horizontal (normal) ... 12 February 1932
Stelae over the Great Drain ... Horizontal (normal) ... 10 February 1932
