West wall of the spring room ... AMS south 2767 ... 11 Jun 1940
West wall of the spring room ... south 2767 Horizontal (normal) ... 11 Jun 1940
Northwest corner of the spring room wall ... AMS east 2762 ... 11 Jun 1940
Northwest corner of the spring room wall ... east 2762 Horizontal (normal) ... 11 Jun 1940