West Branch of the Great Drain, showing change of construction technique in the east wall of the drain ... east 8348 Horizontal (normal) ... 11 Apr 1956
View showing conservation work done on the drain. Wall towards north has been built up and drain generally cleaned ... north 8346 Horizontal (normal) ... 11 Apr 1956
West Branch of the Great Drain showing diagonal cutting through the wall of the Great Drain, for the Roman drain, after clearing away fallen stones ... south 8349 Horizontal (normal) ... 11 Apr 1956
