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| Poros Building Drain ... ΟΟ-13 2500, 2501 ΟΟ 1298 P 20242 ΟΟ 1299 P 20243 Lot ΟΟ 451 Section ΟΟ 364 ... 9 May 1949 ... Poros Building Drain |
| Poros Building Drain, looking west ... AMS Horizontal (normal) ... Poros Building Drain, looking west. |
| Poros Building Drain, looking north ... AMS Horizontal (normal) ... Poros Building Drain, looking north. |
| Poros Building Drain, looking west ... AMS Horizontal (normal) ... Poros Building Drain, looking west. |
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