One of the "Harleyford" series, includes every RAF squadron badge up to 1955. With detailed illustrations of aircraft insignia and camouflage including a selection of US and Axis markings.
This book was the bible for model-makers when I was a boy, which is to say the 50's & 60's. It's an absolute goldmine of information on, and pictures in colour of, almost any military aircraft you could think of — and it gave special attention to unusual markings.
