Stuttgart, Germania-Verlag G.M.B.H., s.d. (ca. 1936) , in-folio, 35 x 26,5 cm, xii pp + 385 pp + (3 )nn pp , with coloured frontispiece portrait and many black/white ills. (air ships , airplanes etc.). Bound in publisher's gilt decorated full cloth, some minor traces of wear but a very fine copy. Text in German. (Buch auf Deutsch).