Title: Secret Well Kept
Description: xi, 212, 8 pages of plates : 23 cm
Subjects: Intelligence service, great britain, Great britain, biography, Kell, Vernon, Sir, 1873-1942, Kell, Constance, -1971, Great Britain. MI5 -- Officials and employees -- Biography, Great Britain. MI5, Employees, HISTORY / Military / World War II, POLITICAL SCIENCE / Intelligence & Espionage