View of the Great Drain ... AMS north Horizontal (normal) ... 21 March 1934
Wall of the Great Drain ... AMS Horizontal (normal) ... 21 March 1934
Wall of the Great Drain ... AMS east Horizontal (normal) ... 21 March 1934
West Branch of the Great Drain, showing change of construction technique in the east wall of the drain ... AMS east 8348 ... 11 Apr 1956
