Europe 1:1,000,000.
Great Britain.War Office.General Staff.Geographical Section.
Royal Geographical Society (Great Britain)
Great Britain.Ordnance Survey.
United States. Army Map Service.
[London] : War Office,
1915-
Set includes various issues of some sheets, some reissued by U.S. Army Map Service. Some sheets are compiled by the Royal Geographical Society, Ordnance Survey, British Middle East Forces (M.D.R. 1) or Army Map Service.
"Projection of the International map [of the world]."
"Contours at 100 & 200 metres, & above at 200 metre interval." Elevations also shown by altitude tints, hachures and spot heights.
Four classes of railroads, four classes of roads and tracks, and two types of internal boundaries are indicated. Some sheets have air information which includes lines of equal magnetic variation, landing areas, and hazards and aids for air navigation.
"Pronouncing glossary" on some sheets.
Marginal indexes to boundaries and adjoining sheets are included.
Graphic index in GSGS central file.
Accompanied by: Index diagram to the 1:1000000 map. GSGS 3030. Pub. Ordnance Survey, 1917.
Aeronautical charts