1. Map showing the telegraph lines in operation, under contract, and contemplated, to complete the circuit of the globe Maps University Of Minnesota Public content 1871. J.H. Colton & Co. Relief shown by hachures. From the Nathaniel Prentice Banks papers in LC Manuscript Division. Includes note. 41 x 63 centimeters Scale approximat... G.W. & C.B. Colton & Co. (New York).