A rare modern map of northern Africa extending to the Atlantic Ocean in the lower left. It was published in Giacomo Gastaldi’s influential edition of Ptolemy’s “Geographia”. Gastaldi was arguably the greatest Italian cartographer of the sixteenth century. It is also the world’s first printed pocket atlas, and the first to use a mechanism to hold the plates in position so that the impression was good and level. Karrow, R.W. (16 c.) 30/33; Nordenskiold Collection 214; Phillips, P.L. (Atlases) 369; Shirley “Atlases in the BL” T.Ptol 9a.