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| Pit at 88-89/Δ. Looking east ... AMS Horizontal (normal) |
| Pit at 88-89/Δ. Looking north ... AMS Horizontal (normal) |
| Room B. Looking north. Cleared ... AMS Horizontal (normal) |
| Room C. Rubble wall, looking north. Closer ... AMS Horizontal (normal) |
| Room C. Rubble wall, looking north ... AMS Horizontal (normal) |
| Casting pit ... north 748 Horizontal (normal) ... 9 April 1937 |
| Casting pit ... AMS north 748 Horizontal (normal) ... 9 April 1937 |
| Casting pit ... north 746 Horizontal (normal) ... 9 April 1937 |
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