Foundation of Wireless A.L.M. Sowerby
2nd Edition, Revised. 266 pages. No dust jacket. Grey cloth. Pencil inscription to front free endpaper. Contains black & white illustrations and plates. Pen inscription to front pastedown. Pages are mildly tanned throughout. Text is clear. Binding remains firm. Boards have moderate edge-wear with bumping to corners and rubbing to surfaces. Visible sunning & crushing to spine. Noticeable tanning all over.