DerbyshireBurdett, Peter Pever, active 1770-1773, creator[1791]engRelief shown by hachures.Prime meridian: London. Coordinates converted by cataloger to express longitude as measured from the Greenwich meridian.Includes "A plan of Derby" and "The series of great triangles reduced to an horizontal plane."With dedication to the Society for the Encouragement of Arts &c. from P.P. Burdett.Watermarks.