1. Colton's new sectional map of the state of Nebraska Maps University Of Minnesota Public content 1969. G.W. & C.B. Colton & Co. Entered according to act of Congress in the year 1865 by G.W. & C.B. Colton ...; Prime meridians: Greenwich and Washington.; Includes inset of "Pla... G.W. & C.B. Colton (New York), 1865.