Railway Signalling: Theory and Practice by S. T. Dutton
1928. No edition remarks. 148 pages. No dust jacket. Red cloth. Black and white illustrations throughout. Pages are mildly tanned with visible foxing, heavy to endpapers. Mild cracking to gutters, however binding remains firm. Boards have light edgewear with corner crushing and notable marking to boards. Notable tanning to spine, which has mild crushing to ends. Moderate water stains to boards.