Introduction to Valves by R.W. Hallows, H.K. Milward
1953. First Edition. 152 pages. No dust jacket. Grey cloth. Contains black and white in-text illustrations. Pages are lightly tanned and foxed throughout, slightly heavier foxing to endpapers. Occasional thumb-marking present. Binding remains firm. Boards have mild edge wear with slight rubbing to surfaces. Soft crushing to spine ends. Light foxing overall. Book is slightly forward leaning. Light tanning to spine and edges. Minor brown marking to spine.