1912
Great Britain. General Staff. Geographical Section.
1848
ALLEN, William Captain, R.N., and THOMSON (Thomas Richard Heywood)
1827
Vandermaelen, Philippe, 1795-1869
1:2m
1856
Taylor, Bayard.
1907
Great Britain. General Staff. Topographical Section.
1707
1960
Federal Surveys, Nigeria (Revision)
1:1m
1967
USSR (Union of Soviet Socialist Republics).
1:4m
1905
Scobel, Albert
1:4m
1897
Henri Eugène Spicq; Service Géographique des Colonies
1:2m