Aerodromes and Hospitals

First Army area (extension east) : hostile aerodromes opposite First Army front, [February 1918]

[First] Army area : secret, map no. 2, First Army medical arrangements; First Army railways, [January 1918]

[Second] Army area map, no. 8 : hostile aerodromes and hospitals, from air photographs, April 1st - May 15th, 1918

[Second] Army area map, no. 9 : enemy hospital signs opposite Second Army front (from air photographs), June 6th, 1918

[Second] Army area map, no. 9 : hostile aerodromes opposite Second Army front, August 23rd, 1918 (from air photographs)

[Second] Army area map, no. 9 : hostile aerodromes opposite Second Army front, June 6th 1918 (from air photographs)