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| From north: late foundations exposed ... AMS Horizontal (normal) |
| From south: late foundation exposed ... AMS Horizontal (normal) |
| From north: before start ... AMS Horizontal (normal) |
| From north: before start ... AMS Horizontal (normal) |
| From north, as cleared. Y: shield base as found ... AMS Horizontal (normal) |
| From southwest. Before digging ... AMS Horizontal (normal) |
| From northwest. Before digging ... AMS Horizontal (normal) |
| From west. Cleaned, before digging ... AMS Horizontal (normal) |
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