1955. Reprint. 156 pages. Blue jacket over yellow cloth. Contains black and white photographic and diagrammatic plates throughout. Pages are mildly tanned and moderately foxed, but text remains clear. Plates are bright. Binding is firm. Boards have moderate shelf-wear, with noticeable corner bumping and some denting to edges. Mild crushing to spine ends. Small noticeable brown marks overall. Slight backwards lean. Unclipped jacket. Noticeable tanning and foxing to all surfaces. Panels and spine have moderate edgewear, with noticeable chipping, tearing and creasing, and slight loss to spine ends.