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 limitation page by all three authors. Light wear to extremities and cracking to front hinge (which is still firmly intact), otherwise fine condition. R&R COA.