The ‘Three Musketeers of the Air’—Hermann Koehl, James Fitzmaurice, and Baron Guenther von Huenefeld—made the first transatlantic airplane crossing from east to west in a Junkers W33 on April 12–14, 1928. Signed book: Three Musketeers of the Air by Hermann Koehl, James C. Fitzmaurice, and Baron Guenther von Huenefeld. Limited “autograph” (first) edition of 260 signed copies (this copy No. 144) NY: G. P. Putnam’s Sons, 1928. Hardcover, 6.75 x 10, 329 pages. Signed in ink on the completely detached limitation page by all three authors. In very good condition, with light wear to extremities and cracking to front hinge (which is still firmly intact), some fraying to headband and tail, and some mild rippling to pages. RRAuction COA.