"according to Sleeping With the Enemy: Coco Chanel's Secret War, the creator of the mythical Little Black Dress was a numbered Nazi agent working for the Abwehr, Germany's military intelligence agency.
[...] the celebrated designer had an Abwehr label: Agent F-7124. She also had a code name: Westminster, after her sometime lover with whom she spent weeks salmon fishing in his estate before the war.
[...] a British secret intelligence report documenting what Count Joseph von Ledebur-Wicheln, an Abwehr agent and defector, told MI6 agents in 1944. In the file, Ledebur discussed how Chanel and Baron von Dincklage travelled to bombed-out Berlin in 1943 to offer Chanel's services as an agent to Heinrich Himmler."