BAUM, Lyman Frank (1856-1919). The Army Alphabet. Chicago and New York: Geo M. Hill Company, 1900. 4to (313 x 257 mm). Numerous illustrations by Harry Kennedy. Original cloth-backed pictorial boards (rubbing to extremities, light chipping to corners). FIRST AND ONLY EDITION of this rare political picture book. Issued to coincide with Chicago's hosting of the 34th Annual Encampment of the Grand Army of the Republic in August 1900.