Looking northwest. High point at southeast ... AMS 21 Horizontal (normal) ... March 1947
AMS 19 Horizontal (normal) ... 21 Mar 1947
Looking northwest. High point at southeast ... Scanned 2005 for the 75th anniversary exhibition and publication. 21 Horizontal (normal) ... March 1947
Scanned 2005 for the 75th anniversary exhibition and publication. 19 Horizontal (normal) ... 21 Mar 1947