Notebook ... R. S. Young ... 8201 8399 ... 1947-1949, 1956
Great Drain ... AMS 2356 Horizontal (normal) ... 13 Jun 1939
Looking south. Showing drain wall (D) overhanging earlier limestone block (L) and east wall of House U (U) with northeast corner (C): stone packing (P) between U and drain ... AMS Horizontal (normal)