Society for the Diffusion of Useful Knowledgeet al          
        
                  
              31.5 x 39 cm., 1:5,500,000, Map shows the routes of some prominent European explorers, Relief shown by hachures and spot heights, Main Heritage Compact General, HC.MAP.00628, Print Map, Item-ID: i11403500, BIB-ID: 1172693, West Africa