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British Military Intelligence Maps by Geographical Section, General Staff (GSGS) of the War Office and Inter-Service Topographical Department
Geographical Section, General Staff (GSGS, also known as MI 4) operated under the Director of Military Operations and Intelligence. Its role was to supply maps to the British forces, collect data on foreign survey networks, provide training, and prepare survey data for British Expeditionary Force mobilization. GSGS was organized into small sections, each of which specialized in maps of a particular region. The War Office Map Library, which was also part of MI 4, acquired maps and cartographic intelligence data. Senior staff members were usually Royal Engineer officers with surveying qualifications, although there were a few Royal Artillery or infantry officers. The rest of the staff were civil technical assistants and clerks, together with some other Royal Engineer ranks.
The Inter-Services Topographical Department (ISTD) was formed following the nearly disastrous British invasion of Norway (April 9 - May 9, 1940). Prior to that time, the Army and Royal Navy had different intelligence units that were independent of each other. The ISTD was established at Manchester College, Oxford. Working together with members of each arm and the Allies, this unit was able to bring together zero-elevation aerial photography, which is photography taken as close to the wave tops as possible, in order to bring the views of the beach landscape, which were then made into continuous horizontal strip photographs. These files were marked with military targets such as bridges, marshalling yards and the like, and new photos and intelligence were used to update obsolete maps. From these new maps, and from older maps, magazine illustrations, and old family photographs taken on holiday collected from the public, new maps were produced for the planning staffs and operations forces.
The series contains 183 items organized alphabetically by country. Most maps are accompanied by supporting text. European and Asian theaters of operation are represented.
ITEM 1 I.S.T.D. List of Reports Issued-Copy No. 33 & 39 September 30,1944
100+ pages
Two copies
ITEM 2 Notes on G.S.G.S. maps of the Balkans July 1944
49 pages plus maps
Includes maps, gazetteers, and descriptions of the area
ITEM 3 Notes on G.S.G.S. maps of Germany, Denmark, and Central Europe March 1944
50+ pages and maps
Includes maps, gazetteers, and descriptions of the area
ITEM 4 Notes on G.S.G.S. maps of France, Belgium and Holland December 1943
50+ pages and maps
Includes maps, gazetteers, and descriptions of the area
ITEM 5 Notes on G.S.G.S. maps of Italy, Sardinia, and Corsica May 1943
57 pages plus maps
Includes maps, gazetteers, and descriptions of the area
ITEM 6 I.S.I.S. Special Reports on the Netherlands and Belgium, the port and town of Amsterdam (port of Zaandam) January 1944
40+ pages including photographs
ITEM 7 I.S.I.S. Report on the Netherlands and Belgium August 1942
100+
Single sheet showing Plans No. and date
ITEM 8 I.S.I.S. Austria, Photographs, Topography, and Main Roads December 1944
200+ pages including photographs
ITEM 9 I.S.I.S. Railways of Denmark and Schleswig-Holstein (Plans) May 1944
8 pages
Two copies; one is incomplete
ITEM 10 The Port of Copenhagen September 1944
70 pages including photographs
ITEM 11 Denmark Intelligence Report July 1943
94 pages
ITEM 12 I.S.I.S. Report on France Volume 1- Northeast France December 1942
300+ pages including photographs
ITEM 13 I.S.I.S. Report on France Volume 3- Brittany February 1943
250+ pages including photographs
ITEM 13 I.S.I.S. Report on France Volume 2- Normandy West of the Seine January 1943
250+ pages including photographs
ITEM 14 I.S.I.S. Report on France Volume 4- Mediterranean France October 1943
8 pages
Incomplete
ITEM 15 I.S.T.D. Report on the Ports and Towns of La Pallice and La Rochelle September 1942
30+ pages including photographs
Two copies
ITEM 16 I.S.T.D. Report on the Ports and Towns of Rochefort August 7, 1943
15 pages including photographs
ITEM 17 I.S.T.D. Report on the Ports and Towns of Les Sables d'Olonne June 17, 1943
10 pages including photographs
ITEM 18 The Port and Town of Strasbourg June 1944
15+ pages including photographs
ITEM 19 I.S.T.D. Report on the Ports and Towns of the Gironde Estuary (Royan to Bordeaux) December 5, 1942
100+ pages including photographs
ITEM 20 I.S.T.D. Report on the Railways of Brittany December 1943
101 pages including a map
ITEM 21 I.S.T.D. Report on the Railways of Normandy West of the Seine November 1943
159 pages including a map
Two copies; one is incomplete
ITEM 22 I.S.T.D. Special Report on the Railways of the Paris Area through and avoiding routes December 1943
55 pages
ITEM 23 I.S.T.D. Report on Railways of the Railways from Nantes to Paris January 1944
26 pages including a map
ITEM 24 I.S.T.D. Special Report on French Railways Eastern Region (including Alsace-Lorraine and Luxembourg) April 1943
109 illustrations
ITEM 25 I.S.T.D. Special Report on the River Rhone (from Lyons to the mouth) November 1943
75+ pages including photographs
ITEM 26 Amendments to I.S.T.D./Tn/408 Special Report on the Certain Railways of France in the South-West, South-East, & East September 1944
4 pages
ITEM 27 Middle Danube Area Geology June 1944
33 pages including photographs
ITEM 28 Middle Danube Area Photographs Part II Resources
80 pages including photographs
ITEM 29 Special Report on Middle Danube Area Railways May 1944
350+ pages including photographs
ITEM 30 Middle Danube Area Topography June 1944
162 pages
ITEM 31 Middle Danube Area Waterways June 1944
91 pages
ITEM 32 Special Report on Certain Railways of North-West Germany with Approaches from Antwerp and Rotterdam January 1944
131 pages including maps
ITEM 33 Special Report on Certain Railways of South-West Germany January 1944
145 pages including maps
ITEM 34 Railways of South-West Germany Dated January 1944 with lines in the Area and Connecting lines from Western Austria & Italy July 1944
250 pages
Amendments to I.S.D./C/317
ITEM 35 Plans and Photographs [South-West Germany] July 1944
2 pages
ITEM 36 Railways of South-West Germany Schedule of Bridges (for Lines described in I.S.T.D/C/317 and C/317A) November 1944
90+ pages including photographs
ITEM 37 Railways of South-West Germany Schedule of Tunnels (for Lines described in I.S.T.D/C/317 and C/317A) February 1945
70+ pages including diagrams
ITEM 38 Special Report on Hamburg Port, Public Utilities, Oil Storage and Shipbuilding March 1944
100+ pages including photographs & diagrams
ITEM 39 Special Report on the Port of Kiel March 1944
75+ pages including photographs & diagrams
ITEM 40 The Town of Kiel (with amendments to C/344) July 1944
25 pages including photographs
ITEM 41 The Ports of Bremerhaven and Bremen May 1944
50+ pages including photographs
ITEM 42 Bremerhaven -- Wesermuende and Bremen Towns August 1944
40+ pages including photographs
ITEM 43 Special Report on Certain Railways of Northern Germany February 1944
58 pages
ITEM 43 Special Report on the Port of Cuxhaven February 1944
20+ pages including photographs
ITEM 44 Special Report on the Port of Wilhelmshaven March 31, 1944
12 pages including photographs
ITEM 45 The Town of Wilhelmshaven (with amendments to C/350) July 1944
4 pages including photographs
ITEM 46 Outline Report on the Topography of Western Germany March 1944
12 pages including photographs & diagrams
ITEM 47 Emden Port and Town June 1944
20 pages including photographs & diagrams
ITEM 48 Special Report on the Roads of Western and Central Germany Volume 1 January 1944
175+ pages including photographs & diagrams
Small size Volume
ITEM 49 Special Report on the Roads of Western and Central Germany Volume 2 March 1944
100+ pages
Small size volume
ITEM 50 Special Report on the Roads of Western and Central Germany Volume 3 May 1944
350+ pages
Small size volume
ITEM 51 Mannheim -- Ludwigshafen Port and Town September 1944
75+ pages including photographs
ITEM 52 Western Germany: Frontier Zone Sheet P1 Topography, Roads, and Bridges September 1944
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