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| Drain. General view, looking south ... AMS Horizontal (normal) |
| Drain. General view, looking north ... AMS Horizontal (normal) |
| Great Drain, looking west, showing construction of west wall and water channel (WC) entering from west ... AMS Horizontal (normal) |
| Drain. Looking south, showing corbelling of west wall and fills ... AMS Horizontal (normal) |
| Great drain, looking south, showing fills. 1) Red sand and fine gravel. 2) Green gravelly fill, rather fine sand. 3) Green fill, but with quantities of small stones and bits of broken tile ... AMS Horizontal (normal) |
| Great Drain, showing fills. 1) Red sand and fine gravel ... AMS Horizontal (normal) |
| Drain, west wall, looking north, showing corbelled construction and fills ... AMS Horizontal (normal) |
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