Interesting map with great pre-Gadsden Purchase western borders. The west is composed of only California, Utah, New Mexico, Oregon and NW Territory and Alaska is Russian Territory. Good detail throughout the Caribbean. A very fine example of Dufour's work with title in fancy script.
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Condition: A
Some very light offsetting in ocean. Folding as issued with small strip of paper laid in at binding trim, not affecting map. A few spots in blank margins.