Index sheet of maps "Russischen karte des Westlichen Grenzgebiets" (link)
German cartographers during the First World War (1914-1918) by increasing the content of the map of Russian Empire in scale 1:42000 issued a topographic map scale of 1:25000. Collection of these maps entitled "Russischen karte des Westlichen Grenzgebiets" (Russian map of western frontier). This collection of maps covered the territory of present Estonia, Latvia, Lithuania, Poland, Belarus, Ukraine, Russia. Maps were grouped in subgroups (Gruppe Petersburg, Revel, Dagö, Libau, Riga, Dunaburg, Kowno, Grodno, Warschau, Brest-Litowsk, Pinsk...). On strategic territories maps of the collection have been updated. Fully or partially updated maps of towns and surroundings Kowno, Libau, Grodno, Brest, lines Modlin -Warsaw, Duneburg - Lake Naroc. At absence of maps in scale 1:42000, maps in scale 1:84000, also 1:21000, 1:126000 were used. Part of a collection of maps "Russischen karte des Westlichen Grenzgebiets" released just copying the contents of the Russian maps, part of maps filed by the place-name in German (or place-names in German side-by-side with place-names in Russian), part of the maps were fully updated (German title, horizontals every 5 meters).
The nomenclature names of maps in scale 1:25000 from the collection "Russischen karte des Westlichen Grenzgebiets" are identical to maps of the Russian Empire in scale 1:21000, only instead of letters in the Cyrillic alphabet used in Latin (A, B, C, D, E, F, G, H, J).
On territories of North line (present Estonia, north of Latvia, border Estonia-Russia) the nomenclature names look as names of 1-verst maps of Russian empire: xx-yy (xx - -row, yy - position in row).
On territories where operated German 8 and 10 armies subsets of maps Karte der 8 Armee and Karte der 10 Armee were issued. Names of maps from these subsets have continued character (from 1 til xxx).
Most maps in scale 1:25000 released monochrome. On some maps of lines Modlin - Warsaw, Duneburg - Lake Narac red and blue shows the position of the troops. At some maps from group Libau, Brest-Litowsk horizontals shown in brown (topographic symbols like on Messtischblatt).
The size of maps in scale 1:25000 is 9' longitude and 5' latitude, size of maps from Nort line 12′ longitude and 6′ latitude.
Longitude considered from Pulkovo.
+ XXVI-19-B, XXIX-18-E.
Map XII-13-F (general view, 1915) from set Russischen karte des Westlichen Grenzgebiets (Russian map of western frontier). Color of map (sepia) is as original (no colors' leveling), size map with frames 50x50 cm, size map without frames 40x40 cm.
Example (full map VIII-14-B) you can see
below.
Example showing changes between maps published in 1914 and 1916 (the same set Russischen karte des Westlichen Grenzgebiets) you can see below too.
Fragment of map XXIV-15-A from set "Russischen karte des Westlichen Grenzgebiets", published in 1914
Fragment of map XXIV-15-A from set "
Russischen karte des Westlichen Grenzgebiets", published in 1916. Territory the same as in fragment above.
Index sheet (part) showing Norh line of set
Russischen karte des Westlichen Grenzgebiets (1914-1918, 1:25000), territories of present Estonia, Russia-Estonia border (
possible to zoom). Rest of index you can see
There (link). As you see preset Estonia was covered by maps from groups Petersburg, Reval, Dagö, Riga, Dunaburg, Baltische Inseln, Karte der 8 Armee.