A plan of the boundary lines between the Province of Maryland and the three lower counties on Delaware : with part of the parallel of latitude which is the boundary between the provinces of Maryland and Pennsylvania.Mason, Charles, 1728-17861768]"This is one part of the famous Mason and Dixon survey that was published by Robert Kennedy in Philadelphia in 1768 ... [and] was engraved by Henry Dawkins and James Smither"--Wheat & Brun, p. 108.Coverage continued on separately issued map: A plan of thcartographic