PH2000:0404
architecture, engineering, military
December 1939
architecture, engineering, military
PH2000:0332
architecture
March 1939
architecture
PH2000:0402
architecture, engineering, military
October 1939
architecture, engineering, military
PH2000:0403
architecture, engineering, military
26 October 1939
architecture, engineering, military
PH2000:0449
architecture
1938
architecture
PH2000:0406
architecture, engineering, military
31 July 1940
architecture, engineering, military
PH2000:0407
architecture, engineering, military, topographic
14 August 1940
architecture, engineering, military, topographic
PH2000:0405
architecture, engineering, military
13 January 1940
architecture, engineering, military
PH2000:0416
architecture, engineering, military
4 May 1945
architecture, engineering, military
PH2000:0460
architecture
March 1941
architecture