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Mount & Page edition of John Thornton's this striking sea chart, which charts the first tran-Indian Ocean portion of one of the world's most important trade routes.

Thornton's map of the region is one of the earliest English Sea Chart to cover the Indian Ocean, at a time when the English Naval presence in the region was significantly expanding and the English mapmaking trade was beginning to thrive.

There are two states of the map with the Thornton Imprint:

  • State 1 (1703): Imprint of John Thornton
  • State 2 (1716): Imprint of Samuel Thornton

Later editions of the chart appeared in The English Pilot, The Third Book,r published by Mount & Page.

Condition Description
Old fold split, expertly repaired on verso.
Samuel Thornton Biography

John Thornton was a respected and prominent chartmaker in London in the latter part of the seventeenth century. He was one of the final members of the Thames School of chartmakers and served as the hydrographer to the Hudson's Bay Company and the East India Company. He produced a large variety of printed charts, maps, and atlases in his career, but he was also a renowned manuscript chart maker. Born in London in 1641, he was apprenticed in the Drapers Company to a chartmaker, John Burston. After being made free of the company (1665), he was part of the combine that took over John Seller’ English Pilot in 1677. Thornton was trusted by the naval and navigational establishment of the day; one of his clients was Samuel Pepys, naval administrator and diarist. Thornton died in 1708, leaving his stock to his son, Samuel, who carried on the business.

Samuel, born in ca. 1665, also had apprenticed in the Drapers Company and was made free a year after his father’s death. He continued the business until 1715, when he died. His stock then passed to Richard Mount and Thomas Page.