Geology of the Sahara South of Algeria 1885 old antique vintage map plan chart

'Geology of the Sahara South of Algeria'. Title of map:'Geology of the Sahara South of Algeria'. Antique wood-engraved map; Scale 1:13,000,000, 1885. DATE PRINTED: 1885. The image below shows an enlarged cross section from the centre of the map to show the level of printed detail.

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