326pp. Green cloth-covered boards; black titles on front and spine. 4to. Bumping, rounding and fraying at spine ends and corners. Light staining on front board. Lightly cocked. Text block edges starting to fox. Hinges stretched at pastedowns, binding quite loose. Very light tanning and foxing to prelim pages. Some rippling on rear pastedown. Finger mark on title page. Internally neat, clean and bright. In-text black and white illustrations, line drawings, diagrams and drafting renderings throughout.