John Rocque was a Huguenot who at an early age settled in England. By 1734 he was a surveyor, engraver and publisher. His most important English county contribution was a series of maps first published in the ‘English Traveller’ in 1746. This is extremely rare and was followed by their inclusion in ‘The Small British Atlas’ , 1753. This is an example of the map of Cornwall in its second state with the incomplete erasure of the plate mark upper right as issued in the 1753 issue. Quixley (1966) no. 28; Hodson 198.