1967
USSR (Union of Soviet Socialist Republics).
1:3m
1931
War Office
1:4m
1844
Hellert, J.J.
1745
Academy of Sciences, St. Petersburg
1:3m
1879
Arrowsmith, John
1:6m
1885
1901
Stanford, Edward
1:7m
1912
Johnston, W. & A.K.
1:5m
1967
USSR (Union of Soviet Socialist Republics).
1:5m
1833
Mahlmann, H.
1:6m