1925. No Edition Stated. 71 pages. No dust jacket. Blue cloth with gilt titles to front and spine. From the Engineering Degree series. Includes various diagrams. Pages have slight foxing, tanning and minor thumbing. Boards have various stains, marks, scratches and some mottling. Heavy white spattering to front and rear. Corners are bumped and fraying. Spine ends are crushed and worn. Traces of something brown stuck to rear. Slightly scratched overall. Gilt is bright.