Aeronautical map showing aerodromes, seaplane stations, places for emergency landings, hangars for aiplanes and airships, establishments for inflating balloons, mooring masts, aeronautical markers, aerial and marine lighthouses, international borders, telegraph lines, different terrains and weather stations. Colour. Edition de mars [March edition]. The map uses Mercator Projection. Scale 1 : 3 530 260. [Coordinates estimated].