A pair of 18th century celestial charts by Samuel Dunn

A pair of engraved celestial charts by Samuel Dunn Titled: The Principal Fixed Stars of the North/South Hemisphere Delineated on the Plane of the Equator, for the Year 1774 Publisher: Laurie & Whittle, London, May 1794 Each chart flanked by inset boxes containing a list and position of the principal stars and geographical information. Framed and glazed in our studio Dimensions of each including frame: 53.5 x 63 cm Samuel Dunn (1723-1794) was an eminent mathematician and cartographer who published many geographical works in the later decades of the 18th century. He concerned himself chiefly with improving the measurement of longitude for vessels at sea, particularly by the use of celestial measurements.