No Edition Remarks. 20 pages. This is an ex-Library book. Green paperback. Design and Production of Counting Instruments (Electrical) BIOS No. 1389 No. 9. Contains black and white illustrations throughout. Expected library inserts, stamps and inscriptions. Pages remain bright and clear with minimal tanning and foxing. Thumb-marking present. Pulling to covers. Binding remains firm. Paper covers have mild edge-wear with slight rubbing to surfaces. Light curling to corners. Visible tanning to spine and edges. Marks to covers.