A pair of maps in their first state of the polar hemispheres. The northern displays California as a peninsula and a spartan northern Pacific. The south polar map depicts the routes of explorers including Tasman. These highlight one of the features that De L’Isle is most highly regarded for, that being to leave blank any area for which no knowledge was known. Earlier cartographers were wont to insert guesswork coastlines and topographical features. From the ‘Atlas Nouveau’. Good impressions. Clancy 6.26; Tooley Australia no. 1512; Wagner (NW) no. 504.