Hardcover in publisher’s non price-clipped dust-jacket. 599 pages. Bibliography, Notes, Index. Illustrated with black and white photographs. Stated first edition, first printing with full number line. An aviation history of the competition between the airship and the airplane for supremacy of the commercial air travel market in the early twentieth century, with much on the over-size personalities on both sides of the fight. No previous ownership marks. A clean, square, fresh and unmarked copy, like new in like dust-jacket. Appears unread. Fine in a fine dust-jacket.