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Drawing: plan on squared paper with attached extensions, showing solid and dashed lines, hatched areas in blue and orange, green circles and dots, and a north arrow; labels: AREA B.; 2; 3; 4; 5; 6; 7; 8; 9; 10; 11; O; N; M; L; K; J; I; H; 1; 2; 3; 4; 5; 6; 7; 8; 9; 10; 11; Maison 18 -; NORD; Detection magnetique "Aitken"
65 figures hard to readstruck struck outadded written in above” jug ditto, and what it repeatsword reading not certain