Germany

Engrav'd (by the Kings Authority) for the Geographical Dictionary.
A New MAP of the CIRCLE of WESTPHALIA Drawn from the best Authorities. 
G. Rollos sculp. 
Copper engraving by George Rollos published in A New Geographical Dictionary...by John Barrow. London, J. Cootes. 1759.
George Rollos (1731-1796) was apprenticed to engraver, cartographer and publisher, Thomas Kitchin (1719-1784). He seems to have remained a close friend and associate of Kitchin, following his move to St. Albans in 1780 and witnessing his will in that year. 

Showing North Germany incuding Bremen, Munster, Dusseldorf, Cologne.
Good clean example in neat hand colour.