Extremely rare English sea chart, covering some of the far southern portions of Burma, present-day Myanmar, along its Andaman Sea coastline.
The map focuses on the large archipelago that sits off of Mergui, present-day Myeik, near the border with Thailand.
Detailed coastal profiles occupy the top of the map.
This chart is of the utmost rarity; we find no other copies ever having appeared on the market, nor can we find another copy anywhere else.
The English mapmaker William Herbert (1718-95) traveled to India in about 1748 as a purser's clerk. Back home in the early 1750s, he set up a map and print shop on London Bridge, and in 1758, with the encouragement of the East India Company, he introduced a new pilot guide, the New Directory for the East Indies. Herbert gathered superior sources than those used in Mount & Page's The Third Book, consulting such works as Mannevillette's Neptune Oriental, as well as the navigator William Nicholson and the cartographer Samuel Dunn.