The drain at 31/ΝΒ-ΝΣΤ. View from south ... AMS Horizontal (normal)
The drain at 31/ΝΒ-ΝΣΤ. View from east ... AMS Horizontal (normal)
The drain at 31/ΝΒ-ΝΣΤ. View from north ... AMS Horizontal (normal)
Photograph to show construction of the drain at 31/ΝΒ-ΝΣΤ: packing of stones behind tiles. View from northeast ... AMS Horizontal (normal)
