Know Your Signal Generators by Robert Gordon Middleton
1966. No Edition Remarks. 144 pages. Pictorial dust jacket over blue cloth. Contains black and white in-text illustrations. Pages are lightly tanned and foxed throughout. Occasional thumb-marking present. Binding remains firm. Boards have mild edge wear with slight rubbing to surfaces. Soft crushing to spine ends. Light tanning to spine and edges. Minor white mark to front board. Unclipped jacket has moderate edge wear with chips, tears and creasing. Mild rubbing and marking to surfaces, with scuffing to edges and small splits to joints. Staining to front panel.