Stated first Dell Printing, dated 1974. Tight, flat book with shelf slant, creased and cupped spine, edge wear, bumped corners and toned pages. 

At the Tango briefing Quiller got his orders. Orders that sent him on a bizarre undercover operation, a double-suicide mission in the Sahara. His assignment: find, film, and destroy a mysterious downed aircraft before the world learns of its existence, before its cargo is disclosed, and before enemy agents destroy the plane and possibly Quiller along with it!