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| Water Channel C ... AMS 387 Horizontal (normal) ... 30 Mar 1939 ... Water Channel C. |
| Channel C, south of Channel B ... north 1378 Horizontal (normal) ... 5 Jun 1938 ... Channel C, south of Channel B. |
| Channel C, south of Channel B ... AMS north 1378 ... 5 Jun 1938 ... Channel C, south of Channel B. |
| Wall blocking off Channel C from Channel D ... west 2756 Horizontal (normal) ... 31 May 1940 ... Wall blocking off Channel C from Channel D. |
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