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| Excavators in Section ΒΕ ... AMS Horizontal (normal) ... July 1980 |
| Excavator in Section ΒΕ ... AMS Horizontal (normal) ... July 1980 |
| William B. Dinsmoor, Jr. during excavation ... AMS Horizontal (normal) ... July 1980 |
| Excavator in Section ΒΕ. Pam Posey ... AMS Horizontal (normal) ... July 1980 |
| Excavator in Section ΒΕ ... AMS Horizontal (normal) ... July 1980 |
| Excavator in Section ΒΕ. Pam Posey ... AMS Horizontal (normal) ... July 1980 |
| Excavator in Section ΒΕ ... AMS Horizontal (normal) ... July 1980 |
| Excavators in Section ΒΕ. Hans vanderLeest (right) ... AMS Horizontal (normal) ... July 1980 |
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