Sheet number: [Part of sheet 28]. Edition number: 2. "Trenches corrected from information received up to 22-7-17." "5th Field Survey Co. R.E. (1,182) 6-7-17." Detail, grid and contours black; German trenches and names, batteries, strong points etc. red; British trenches with names black., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC17; envelope_number: 487, Manuscript on face: Secret. Map A. To accompany 16th Divn General Staff Instruction No. 1. Markings for attack of XVIII Corps 55th Div., XIX Corps & II Corps in blue, black, red, green, yellow & purple crayon. Ammunition dumps. Manuscript of reverse: [?] Healy Capt. Some modern, ball-point additions by fellow officer of original user.