The Mail from Budapest
https://www.cia.gov/library/center-for-the-study-of-intelligence/kent-csi/vol2no4/html/v02i4a11p_0001.htm [www.cia.gov]
2019-03-30 02:43
This story of pre-war espionage and counterespionage has been summarized from records originating in Czechoslovakia and acquired by American intelligence after World War II. It has all the qualities of a classic except one: it is nearly unknown. It is our purpose here to pull it out, with its still useful lessons, from the shadows of the past.
source: grugq