Canada Russian Alaska Disputed Border in NW United States c. 1845 Thierry mapAmerique Russie, Nouvelle Bretagne, et Canada. (Old Maps, 19th Century Maps, Americana, North America, Canada, Russian Alaska, United States, Disputed Border, Washington, Vancouver). Issued c. 1846, Paris by Thierry. Mid 19th century engraved map with original outline hand color. Map displays the extension of western North America up into British Columbia, Canada prior to the establishment of the border treaty at the 48th parallel. Well preserved,