1897
Langhans, Paul
1:2m
1893
Morgen, Curt von.
1890
C.L. Keller
1:4m
1896
1927
1920
Meunier, A.
1950
Craste, L.
1894
ALIS, Harry pseud. [i.e. Jules Hippolyte Percher.]
1707
1960
Federal Surveys, Nigeria (Revision)
1:1m