The two photographs on Page 3 were taken by an RE8 of 6 Squadron, part of its aerial reconnaissance  operations over the Western Front during WW1.

 

Both photographs were taken by an RE8 of 6 Squadron over Klein-Zillebeke, as defined by the mapping coordinates 28. I. 36. B and - 28. I. 36. A. This is an area measuring 1000 yards east/west and 500 yards north/south. The first photograph was taken on the 24th March 1917 and the second on the 12th June 1917, five days after the 19 mines were detonated beneath the German lines along the Messines ridge.