MERIWETHER LEWIS AND WILLIAM CLARK
"History of the expedition under the command of Captains Lewis and Clark, to the sources of the Missouri, thence across the Rocky Mountains and down the river Columbia to the Pacific Ocean, performed during the years 1804-5- 6 Prepared for the Press by Paul Allen, Esquire."
FIRST EDITION 

Bradford and Inskeep, 1814.  First edition of the first authorized and complete account of the most important western expedition, and arguably the most important book in the field of Western Americana. Two volumes, 8vo, pp.xxviii, 470; ix, [1], 522; 5 engraved plans and charts, the large folding map, which was not issued in all copies, is present here supplied from the 1905 edition; contemporary bindings, text foxed, as usual. Church 1309; Field 928; Graff 2477; Howes L-317; Printing and the Mind of Man, 272; Sabin 825; Streeter III, 177; Wagner-Camp 13. Comes in a custom-made collector's case.