74pp, with 100 diagrams, in printed light card wraps. 12mo. Covers shelf worn, rubbed on corners and spine ends, a little toned, scuffed and cracked around spine. Previous owner's name on front free endpaper. Pages show just a little wear at edges else internally neat, clean, bright and tight.
An ideal vintage volume for home schooling as a introduction to applied science, or for those who prefer to learn their science and engineering the old school way. With fine, if small, technical drawings and diagrams.