256 pp, 4to (11 3/4" H). Profusely illustrated with b&w photographs. Two books in one - originally issued in the 1980's. Two airplanes quite different in their size and purpose, but the backbone of the RAF Bomber Command in the early years of WWII. Two tiny dints on edges of boards. Dust jacket has heavy wrinkling at top of spine, light wrinkling at top of flap-folds.