Copper engraving, mm 196x260. From the edition of the “Geografia” printed by Sessa heirs. Good proof with some foxing and surface dirt in margins. This double-hemispheric world map by Ruscelli is the first double hemisphere world map to appear in an Atlas. One of two modern world maps in Ruscelli's Atlas, based upon Gastaldi's world map of 1548. The map is adapted from the oval projection used in Gastaldi's larger world map and is presented on Roger Bacon's circular projection, also used by Tramezzino's large world map of 1554. This 1598 edition of the map clearly shows the broad mass of land joining Asia and America as Terra Incognita and the coastline as Littus Incognitum (like the 1561 edition) but also shows the southern mass of land of the Antartic (not shown before).