20,000 FEET OVER HISTORY. N.p. American Airlines, n.d. Octavo, pp. [1-40] (not paginated), pictorial wrappers, side stapled. First edition. Historical sketches of points of interest along the Dallas-Los Angeles flight path. Writing assignment was offered to western novelist Jack Schaefer who declined and suggested Brennan. A giveaway, now virtually unknown and quite scarce. A fine copy. (#861).