Merris : parts of 27 S.E. 28 S.W. 36A N.E. 36 N.W.
Great Britain.Army.Royal Engineers.Field Survey Company.
[London?] : Field Survey Coy. R.E.,
[1918]
"(9190) 21.6.18 9198"
"Trenches corrected ... to 15.6.18"