American Interest - William Faden, (1749-1836) – Rare American Revolutionary War era engraved map, 'A Plan of the Town, Bar, Harbour and Environs of Charlestown [Charleston] in South Carolina, with all the Channels, Soundings, Sailing-marks &c. From the Surveys made in the Colony; Engraved by William Faden, Charing Cross, 1780', Published as the Act directs June 1st 1780, uncoloured, with central fold, plate impression size 51.5cm x 69cm, in card mount and Hogarth-type frame, unglazed (foxing)

William Faden (1749–1836) was a notable English cartographer and publisher of maps and served as the Royal Geographer to George III. During the Revolutionary War, Faden also designed such maps as Plan of the City and Environs of Quebec: With its Siege and Blockade By the Americans… (1776) and A Plan of the Operations of the Kings Army under the Command of General Sr. William Howe, K.B. in New York and East New Jersey (ca. 1777), among many others.

The siege of Charleston, South Carolina (29th March to 12th May 1780) occurred at the beginning of the British Southern Campaign. The siege was carried out by some 14,000 British troops under the command of Sir Henry Clinton and resulted in Colonial General Benjamin Lincoln’s surrender.

The US Library of Congress holds a similar copy of this plan, without the title and date (but the correct date of 1780 ascribed):
https://www.loc.gov/item/gm71000630/

See also a matching version, University of Wisconsin, Milwaukee
https://collections.lib.uwm.edu/digital/collection/agdm/id/32357/

Example sold at auction:

https://www.charltonhallauctions.com/auction-lot/**scarce-revolutionary-war-map-charleston-harbor_26B4966835
($18,750 including Buyers Premium)

A hand-coloured version recently sold on the open market:
https://www.raremaps.com/gallery/detail/0010jh/a-plan-of-the-town-bar-harbour-and-environs-of-charlestown-faden
Where stated: "The map is quite scarce on the market, with only 2 examples appearing at auction and in dealer catalogues in the past 15 years - most recently, Ashley Baynton-Williams: British Broadsheet Maps and Battle Plans - Catalogue 2008, Item 123, priced at 15,000 GBP ($29,875 USD)