1857. J.H. Colton & Co. Relief shown by hachures, depth shown by soundings. Includes 6 insets: Map of New York City from an actual survey by James Lyne, 1728 -- Philadelp... J.H. Colton & Co. (New York).
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2. Iowa [map].
1855. J.H. Colton & Co. Hand colored. 37 x 43 centimeters Scale approximately 1:1,452,680 General Map Collection. J.H. Colton & Co. (New York).
1855. J.H. Colton & Co. (W 113°--W 90°/N 49°--N 32°). Relief shown by hachures. Covers Nebraska extending to the Canadian border and westward to Oregon and Kansas incl... J.H. Colton & Co. (New York).
4. Wisconsin
1854. J.H. Colton & Co. Inset: Vicinity of Milwaukee. Prime meridians: Greenwich and Washington. "Entered according to Act of Congress in the year 1854 by J.H. Colton ... J.H. Colton & Co. (New York).