Biggles Investigates and other stories of the Air Police - Captain W.E. Johns 1964 - Brockhampton Press, Leicester - First Edition A collection of eight short stories take Biggles and team 'investigating' crashed Spanish planes and essence of rose petal, bodies dropping from aircraft, Bertie makes a trip to Paris, and Biggles chases a getaway plane all the way to Scotland.

With striking colour frontispiece by Leslie Stead.
  First Edition Points - Book with grey cloth boards (later editions were laminated), colour frontispiece (removed in later editions). Book list on dust jacket rear lists to up to Biggles Investigates, followed by three Gimlet titles. Price of 8/6 net in U.K. to front flap.

Reference: YABS. Biggles Online 81 1.

pp. 184. In publisher’s light grey boards, spine lettered in orange. Dust jacket priced 8/6 net to lower corner of front flap.
  Condition: Near fine, short tear to rear endpaper from printing, light spotting to top edge, in very good plus unclipped jacket, wear to spine ends and corners, light wrinkling to folds and edges.   Ref: 106942   Price: HK$ 1,500