1967
Polish Army Topography Service
1864
MICHIE, Alexander.
1745
Academy of Sciences, St. Petersburg
1:3m
1921
War Office
1:4m
1917
Chen, Haoji
1833
Mahlmann, H.
1:6m
1967
USSR (Union of Soviet Socialist Republics).
1:3m
1925
Stieler, Adolf
1:8m
1874
1:9m
1851
MARTIN, Robert Montgomery.