|
|
| 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 |
| View showing conservation work done on the drain. Wall towards north has been built up and drain generally cleaned ... AMS north 8346 ... 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 ... AMS south 8349 ... 11 Apr 1956 |
| Middle drain to north of Building C before final clearing. West Branch of the Great Drain showing its two courses ... Publication says from the northeast. southwest 2564 Horizontal (normal) ... 21 May 1938 |
| Middle drain to north of Building C, as cleared ... AMS north 2567 ... 31 May 1938 |
|
|
