1968: Brockhampton Press,
First edition, first printing. 8vo. Blue boards with gilt lettering to spine. Pictorial dustwrapper. A fine copy with clean boards. No inscriptions. The fine dustwrapper has no nicks or tears. Original first issue price of 10/6net on front flap. A superior copy.
One of the hardest Biggles titles from the 1960s.