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| Drain W, detailed view ... southwest 1675 ... March 1952 ... Drain W, detailed view. |
| Drain W, detailed view ... AMS southwest 1675 Horizontal (normal) ... March 1952 ... Drain W, detailed view. |
| General view of Drain W ... southwest 1671 ... March 1952 ... General view of Drain W. |
| General view of Drain W ... AMS southwest 1671 Horizontal (normal) ... March 1952 ... General view of Drain W. |
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