Search Results: hispano suiza simplex aeronautical engines birkigt patents

Wright Martin, 1917. Book. Very Good. Hardcover. Early edition of care and operation guide for Hispano-Suiza airplane engines, including six folding diagrams. Previous owner name. Couple foldouts with one-innch and two-inch tears near spine. Binding is solid..

Wright-Martin Aircraft Corporation, 1917. Hardcover. Good/No Dust Jacket. Hardcover. Black cloth boards with title and design in gold on front board.Light soil and edgewear. Previous owners name on first endpaper. Text is clean. 6 foldout maps are all present and legible. 1st map is upside down. Some math calculations on blank back sides of maps. All have been tape repaired at folds and hinges. The tape has yellowed and is starting to crack and pull away. Series 3A simplex engines.