This is the seventh edition with an 1857 publication date on the title page. It contains numerous double-page maps, each printed on a separate page. The map of the United States shows Oregon Territory, a large Nebraska Territory (encompassing present-day Montana, Wyoming and Colorado), and a large Indian Territory. Quarter leather over pictorial paper boards, 12vo, 383pp.
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Condition: B
Scattered foxing throughout. Spine is chipped at top and covers are worn.