West wall of the spring room ... south 2767 Horizontal (normal) ... 11 Jun 1940
West wall of the spring room ... AMS south 2767 ... 11 Jun 1940
Northwest corner of the spring room wall ... east 2762 Horizontal (normal) ... 11 Jun 1940
Mosaic floor in House S, Room 1 ... House G in nb./RY says House A in NN. east 417 Horizontal (normal) ... 3 May 1940