Looking southeast (of photos 1 and 4 on page 814), showing rubble walls forming angle ... Scanned 2005 for the 75th anniversary exhibition and publication. 816 Horizontal (normal) ... 15 May 1933
Mixed ... E. Vanderpool ... 781 978 ... 1933
Ζ-5 815, 816 Section Ζ 121 Section Ζ 122 Section Ζ 123 Section Ζ 124