For this new edition of Ptolemy’s ‘Geography’ edited by Giovanni Antonio Magini, a noted geographer from Padua, this double hemispheric world map was engraved. it is neatly engraved by Girolamo Porro derived from the Rumold Mercator map of 1587. A tremendous amount of detail has been included with magnificent detailed engraving. The atlas contains the 27 Ptolemaic plates and a further 36 modern maps of the world. The work is often found lacking this initial Mercator world map. Provenance: The Map House 1973; private collection of Rodney Shirley. Nordenskiöld (1979) no. 223; Nordenskiöld (1889) p. 27; Phillips (1909-) no. 436; Sabin (1868) no. 66508; Shirley ‘world’ 194; Shirley ‘Atlases in the British Library’ T.Ptol 12a; Wagner (1937) no. 186.