Northwest Area from west. Left center Well at 03/ΙΗ ... Scanned 2005 for the 75th anniversary exhibition and publication. 170 Horizontal (normal) ... 1 Mar 1932
Δ-1 169, 170 Section Δ 76 Section Δ 77 Section Δ 78 ... 1 Mar 1932
Mixed ... E. Vanderpool ... 1 194 ... 1932