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Philippe Vandermaelen, Partis des Etats-Unis, 1827£ 600.00
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Joseph Nicolas Nicollet, Hydrographical Basin of the Upper Mississippi River, 1843£ 3,450.00
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D.F. Robinson, Western Territories of the United States, 1847£ 985.00
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US Government, (A) Ceded Part of Dakota Territory, 1861£ 195.00
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Roswell C. Smith, Kansas, Nebraska, Minnesota, Indian Territory, Dacotah, 1861£ 645.00
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Justus Perthes, Die Hauptsaechlichsten Gebiete Der Indianer Mission in den Verein Staaten, 1871£ 125.00
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Samuel Augustus Mitchell, County and Township Map of Dakota, 1884£ 58.00
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Justus Perthes, Petermann, Vereinigte Staaten von Amerika in 6 Blattern, Bl 2., 1885£ 85.00
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John Bartholomew, United States Western Division, 1887£ 62.00
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Arbuckle Brothers Company, North Dakota, 1889£ 72.00