1952. Reprinted. 511 pages. Grey dust jacket over blue cloth. Pull-out black and white diagrams to final page. Binding remains firm. Pages are lightly tanned throughout. Previous owner's inscription and sticker to front pastedown and endpaper. Creasing to some pages. Boards have light shelf-wear with corner bumping. Slight crushing to spine ends. Dent to top edge of front board. Light wear marks overall. Unclipped jacket has heavy edgewear with areas of loss, heavy tears, chips, and creasing. Light tanning to spine and edges. Wear marks overall.