The Cruise of the Condor

2.11 Thames Publishing Co. - Regent Classics

Dark blue boards, with gilt titles. Colour f/piece by JE McConnell, lists 3 Biggles books: Cruise of the Condor, Flies Again, Black Peril below Little Women to Lorna Doone, plus Son of Black Beauty on book list page. This possibly printed later as there is a version where the Dustjacket lists 4 Biggles books (including Special Air Police).