Digitized sheet AUC - Scale: Geographical miles 60 = 1 degree, 250. English miles 69.1 = 1 degree, 250. [low l. h.]. Show moreDigitized sheet AUC - Scale: Geographical miles 60 = 1 degree, 250. English miles 69.1 = 1 degree, 250. [low l. h.]. Show less