Old Calabar River; from sketch surveys 1869-90.
1891
London
Kamerun mit Togo 1:2 000 000
1920
Moisel, Max
1:2m
A chart of coast of BIAFRA from Foche Island to Corisco Island together with the Islands of FERNANDO POO and PRINCES
1707
River Benin to river Cameroons
1933
Admiralty
1:610k
Map of the Gold Coast, Ashanti and Northern Territories
1912
Great Britain. General Staff. Geographical Section.
247. Atlantic Ocean Islands. The World Atlas.
1967
USSR (Union of Soviet Socialist Republics).
1:3m
A chart of ye Coast of Biafra from Foche Island to Corisco Island together with the Islands of Fernando Poo & Princes.
1766
Mount, John; Page, Thomas, 1704-1762
1:1m
Durch Kamerun von Süd nach Nord. Reisen und Forschungen im Hinterlande 1889 bis 1891 ... Mit ... Abbildungen ... von R. Hellgrewe, etc
1893
Morgen, Curt von.
Vorläufige übersicht von Zintgraff's Reise von Kamerun nach dem Benuë
1890
C.L. Keller
1:4m
A chart of the Bight of Binnin from Ningo Grande to R. Andony.
1766
Mount, John; Page, Thomas, 1704-1762
1:2m