Duke and Duchess of Windsor: Visit to New York

A file of reports, correspondence, and meeting minutes relating to British counter-intelligence operations and organisation during the war, in particular the management of agents, both Allied and Axis. Documents in this file include an extensive series of memoranda, meeting minutes, and correspondence discussing the partial merger of two departments of the Security Service (MI5) and the Secret Intelligence Service (MI6) to improve counter-espionage efforts; correspondence and reports about the surveillance and arrest of non-British agents; a report on the suicide of a foreign agent in British custody; a list of potential Spanish agents acting for the Axis powers; a report on a potential French double-agent, Dieudonné Costes, and arrangements for his transport to the United States of America; a memorandum on the transportation of invisible ink; reports on morale and public opinion in the dominions; and discussion of remarks made by the Duke and Duchess of Windsor during a visit to New York.