1958. Reprint. 160 pages. No dust jacket. Red cloth. Includes various diagrams. Pages have slight foxing, tanning and minor thumbing. Previous owner's inscription to front endpaper and pastedown. Occasional ink stains to margins. Foxing more noticeable towards the start and end of the book. A few dog-eared corners. Boards have some edge wear, with moderate bumping and fraying to corners, while spine ends are slightly crushed and frayed. A bit scratched, rubbed and marked overall. Pen marks, ink stains, water droplet marks, etc.