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| Floor level of U-shaped bulk, east side. From the northwest ... AMS southeast 860 Horizontal (normal) ... 30 Jun 2000 |
| U-shaped bulk, from the south ... AMS north 860 Horizontal (normal) ... 30 Jun 2000 |
| Floor surface of west side, from the north ... AMS south 860 Horizontal (normal) ... 30 Jun 2000 |
| North face of construction north of road ... AMS Horizontal (normal) ... 30 Jun 2000 |
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