This title is one of a series named Britain in Pictures published shortly after the Second World War. From the back flap of this jacket:
The most distinguished writers of today have contributed to this famous series which now includes nearly a hundred titles and describes almost every important aspect of British life and achievement. Text and illustrations are of equal importance, and each volume is illustrated with eight to twelve full-page colour plates and a large number of monochrome reproductions.
ReproJacket #36-A-1, size 229.2x522mm.