African Continent 1860 Stanford SDUK transitional engraved mapAfrica. (Africa, Continent, Unexplored Regions, Madagascar, Sudan, Abyssinia, Cape Colony, Orange Free State, Egypt, Morocco, Algeria). Issued c. 1859 60, London, by Edward Stanford for Society for the Diffusion of Useful Knowledge (SDUK). Engraved by J. & C. Walker. Scarce later issue of the continent, showing modifications to the plate from previous earlier states. Arnauld 1841, Petherick 1857 8, Anderson 1854 & 1859 noted within map. Mountains of