1943. Reprint. 287 pages. No dust jacket. Beige cloth. Written in German. Contains black and white diagrams throughout. Folding plate to rear of textblock. Pages are moderately tanned, but text remains clear. Mild foxing to plate. Binding is firm. Label to front free endpaper. Mild marking to some pages throughout; text is not obscured. Boards and spine have minimal shelf-wear, with mild corner bumping and crushing to ends. Spine and edges are moderately tanned. Mild marking overall. Book has a slight forward lean.