[Second] Army area map, no. 7 : index to panoramas
Series Number Id: UNKNOWN. Sheet number: part of sheet 28. Second Army panoramas index map, December 1917 - July 1918. "[4th] Field Survey Coy. R.E. 8649 12-4-18 [numbers stroked out with blue overprint and followed with] (9445) 31-7-18." Grey squared base map (reduced from 1:40,000 sheets) with sheet numbers and square reference letters and numbers in green. "Panoramas taken from 5-12-17 to 12-4-18" in red; "panoramas taken from 23-5-18 to 31-7-18 in blue. The arc covered by each panorama photo, the point from which it was taken and its reference number is given. The Front Line on 31-7-18 is shown in blue (west of Merville). Covers front from north of Ypres Salient to south of La Bassée Canal, including Passchendaele Ridge and Flanders Hills (including Cassel) to west of Ypres. Some 75 panorama photos are indicated., Location: Research Collections; Fonds: WW1 Trench Maps: France; Box number: PC20; envelope_number: 631.