Pinpoint the bomber /
Chichester, Francis,Sir,1901-1972.
London : George Allen & Unwin Ltd.,
1942.
Folded maps, one detachable, attached to lining-papers.
The detachable map is at scale 1:500,000  printed by George Philip & Son. (showing Chatham to Koblenz)
Three games designed to teach the principles of map reading.