This map of Tartary was engraved by Joannes Somer and published in Paris by Pierre Mariette. It appears in the first edition of Nicolas Sanson’s “Les Cartes Generales” in 1658. Sanson was France’s premier cartographer and helped to lift the field onto another plain during his career. His atlas is the first full world atlas to be produced in France. This work had been in development for several years as the dates on the various maps attest. Pastoureau Sanson Va no. 11; Phillips, P.L. (Atlases) 4260 no. 11.