"Source of the Columbia River" Hand-colored lithograph. Image size with caption: 11 3/16 x 15 7/8 in. (284 x 403 mm).; sheet: 14 3/8 x 21 1/2 in. (365 x 546 mm). Image lightly toned, with slightly lighter toning to blank margins, light wear to edges of blank margins, minor bleaching to upper right corner of blank margin. With "Les Dalles. Columbia River" Hand-colored lithograph. Each image with its caption approximately 11 1/4 x 15 7/8 in. (287 x 403 mm); sheet: 14 3/8 x 21 1/2 in. (365 x 546 mm). Image lightly toned, light toning to blank margins, some minor bleaching at corners of blank margins. Each top edge mounted, matted and in frame. (Warre, Henry James. Sketches in North America and the Oregon Territory. London: Dickinson & Co., 1848. Plate nos. 7 and 16). Wagner-Camp 157; Howes W 114.