Proof copy, in original card covers. There is no index in this copy, but one has been photocopied from a published copy and laid in. The story of “how Radar brought precision night bombing to Bomber Command”. The author was appointed the first Wing Commander R.D.F., Bomber Command in 1941. Illustrations from photographs, drawings and diagrams. Condition: Corner of text block a little bumped, covers grubby, pages age-darkened but clean. Translucent tape reinforcement to edge of page 3.