A sumptuous double hemisphere World Map

A fine double-hemisphere world after Sanson, redrawn on a larger scale by Jaillot at the request of Sanson's heirs and published in Mortier's issue of Jaillot's 'Atlas Nouveau'. California is an island, 'Terre de Iesso' fills the north Pacific, the Great Lakes are open-ended, and Australia & New Zealand are only partial outlines. The rococo decorations in the cusps feature mer-people and monsters.