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| View of the Great Drain ... north Horizontal (normal) ... 21 March 1934 |
| Wall of the Great Drain ... Horizontal (normal) ... 21 March 1934 |
| Wall of the Great Drain ... east Horizontal (normal) ... 21 March 1934 |
| View of the Great Drain and the related channels ... Horizontal (normal) ... 12 May 1934 |
| Amphora packing over tiles of the Great Drain ... Horizontal (normal) ... 12 May 1934 |
| 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 |
| Great Drain bridged for the East-West Street ... south Horizontal (normal) ... May 1948 |
| Great Drain below with cover slab; above, "bridge block", earth and tumbled breccia blocks ... north Horizontal (normal) ... 14 Apr 1948 |
| Great Drain with east-west retaining wall and tumble behind and above ... south Horizontal (normal) ... 14 Apr 1948 |
| East-west retaining wall over Great Drain with tumble above ... southwest Horizontal (normal) ... 14 Apr 1948 |
| West Branch of the Great Drain ... north 7463 Horizontal (normal) ... May 1948 |
| Great Drain bridged for the East-West Street ... south Horizontal (normal) ... May 1948 |
| Limestone polygonal construction of west drain wall just south of the bridge ... 2143 Horizontal (normal) ... June 1949 |
| Looking at the bridge. Corbelled west wall at left ... north 2185 Horizontal (normal) ... June 1949 |
| East-West Street and Great Drain bridge. Layer 8 cleaned ... east 2070 Horizontal (normal) ... July 1949 |
| Divergence of East-West Street and the Great Drain bridge ... south 2190 Horizontal (normal) ... July 1949 |
| General view. North end of bridge over drain showing cuttings in face of long channel block ... south 2183 Horizontal (normal) ... July 1949 |
| Looking in the Great Drain, showing its west wall built over the corner of an earlier house ... south Horizontal (normal) ... 24 Apr 1948 |
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