A very good first edition in the original crimson binding. There is a small stamp of a previous owner's mark inside the front cover, and the page edges exhibit some minor foxing. In a very good, price-clipped dust wrapper, with minor wear to the edges and some discoloration to the white surfaces.
There are only enough radar valves for the Home Forces or for North Africa, not for both. A special train is the means of distribution and Inspector French has to stop a leakage of information to the enemy.