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| Trench ... Washburn, O. M ... 1905 |
| Trench 1, trench 3, trench 5, trench 5a, trench 7, trench 8, trench 10, trench 13, trench 14, trench 20 ... N/A ... Depicts the following; Plan; State ... N/A |
| Trench 7, Before filling ... Heermance, T. W ... Depicts the following; Plan; State ... N/A |
| Trench VIII ... N/A ... Depicts the following; Plan; State Tracing of dwg # 0089-22. See Dinsmoor NB 192#to locate trenches ... N/A |
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