1964. No Edition Stated. Unpaginated. Contains pages 147-168. Paperback book with sand paper covers. Contains some black and white diagrams, and a black and white photographic plate to rear of textblock. Pages are lightly tanned, but text remains clear. Plate remains bright. Firm staple binding. Noticeable grey marks to reverse of front cover. Paper covers have minimal edgewear, with minor curling to corners. Spine and edges are moderately sunned. Mild scuffing to spine ends, with noticeable rust marks around staples. Noticeable marks overall. Previous owners inscription to front cover.