Signed book: The First World Flight. Limited signed edition of 575 copies (this being no. 497). Boston: Houghton Mifflin, 1925. Hardcover, 6.5 x 9.75, 328 pages. Signed on the limitations page by all six Army lieutenants who made the historic flight that is the subject of the book: Lowell Smith, Erik Nelson, Leigh Wade, Leslie Arnold, Henry Ogden, and John Harding. Also signed by the author, Lowell Thomas. In very good condition, with some light wear to fore-edges, with a bit of edge loss to a few pages, a block of toning to front pastedown and first free-end page, small pencil notation to first free-end page, loose spine, light surface wear to label, and some light wear and rubbing to covers and spine. RRAuction COA.