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[Agora Image] 2012.40.0847 (Section ΞΞ 162)

Cut through Layer 8, looking east to show "checkerboard" drain wall ... AMS Horizontal (normal) ... Cut through Layer 8, looking east to show "checkerboard" drain wall.

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[Agora Image] 2012.40.0432 (Section ΝΝ 1508)

West wall of drain, before removing leaning block (B), looking west. The other three blocks show beginning of checkerboard construction ... AMS Horizontal (normal) ... The other three blocks show beginning of checkerboard construction.