Shows the northern part of the Mason and Dixon line.; Originally published with: A plan of the west line, or parallel of latitude, which is the boundary between the provinces of Maryland and Pennsylvania; both maps surveyed by Mason and Dixon, 1763-1767. Probably published: Philadelphia : Robert Kennedy, 1768.; "Facsimile of the parchment map prepared by Messrs. Mason and Dixon in 1768. Original loaned by Maryland Historical Society."; "Resurvey of the Mason-Dixon Line"--Upper left margin.; Includes notes, and statement, signatures and seals of commissioners Horatio Sharpe, et al.; "Plate LXXXII"--Upper right margin. 66 x 178 centimeters Scale [ca. 1:269,280] General Map Collection