This is a set of three maps, all folded.
Note: the black square is not on the map, it indicates the detail shown in next photo.
The Russian Baltic Provinces Map: 1914
Drawn by the cartographer G. Peltier, this unusual map was first published as a supplement to the French news magazine L'Illustration in 1914 to illustrate the eastern theatre of World War I. It shows the Baltic area - present day Latvia, Estonia, Lithuania, northeast Poland (north of Lodz and east of Thorn and Danzig) and Belarus - in extraordinary detail, identifying small towns and villages, railroads, rivers and their tributaries. The text and legend are in French. Black and white map.
Eastern Europe: 1915 Map
Drawn by the cartographer G. Peltier, this map was first published as a supplement to the French newsmagazine L'Illustration in 1915 to map the eastern theatre during World War I. It shows East Prussia, western Russia, Poland, and much of the Austro-Hungarian Empire, including Galicia, Bukovina and Transylvania, in excellent detail, identifying small towns and villages, railroads, rivers and their tributaries. The text and legend are in French. Black and white map.
The Carpathians, Roumania and Part of the Balkans Map: 1916
Drawn by the cartographer G. Peltier, this map was first published as a supplement to the French newsmagazine L'Illustration in 1916 to map areas affected by World War I. It shows southeastern Europe from Galicia south to northern Greece and the area from Tarnow and Belgrade east to the Black Sea, The excellent detail shows small towns and villages, railroads, rivers and their tributaries in the areas that were formerly Podolia, Bessarabia, Moldavia, Valachia, Bulgaria, Roumelia, and Bukovina. The text and legend are in French. Black and white map.