Cryptonym: TICRYSTAL-1
104-10101-10080: PROVIDE LETTER DROP
11/22/63: Cable from Director to Mexico City: Slugline KEYWAY PBRUMEN TICRYSTAL: "1. Request MEXI provide letter drop for use Swedish national, TICRYSTAL-1, including plane visit Havana night weeks beginning early Jan 64. Letters will be written in English, use false name and return address, contain no SW. Expected frequency about every two weeks for duration visit...2. Will notify MEXI agent (unintelligible) Havana and name to be used in correspondence when he dispatched."
104-10516-10214: CABLE: LETTERS SHOULD BE ADDRESSED TO:
12/14/63: Cable from Mexico City to Director: Slugline KEYWAY PBRUMEN TICRYSTAL: REF DIR 84498: "Letters should be addressed to: (REDACTION), dept. 302, Mexico, D.F. C/S Comment: Requested MEXI provide letter drop for TICRYSTAL-1."
104-10098-10323: VALID ADDRESS
12/16/63: Cable from Mexico City to Director: Slugline KEYWAY PBRUMEN TICRYSTAL: "1. To obviate misunderstanding: Ref A address is valid for use by TICRYSTAL-1. 2. For DIR: MEXI still interested in availability LICAMEO boxes per Ref B. C/S Comment: Letterdrop address for TICRYSTAL-1."
104-10290-10174: CABLE: APPRECIATE REF D ASSISTANCE.
12/18/63: Cable from Director to Mexico City: KEYWAY PBRUMEN TICRYSTAL: CITE DIR 89974: "1. Appreciate Ref B assistance. TICRYSTAL-1 (IDEN) will write letters in English, sign 'Robert', use variety Havana return addresses. Expect first letter be mailed about mid-Jan request cabled notification receipt first letter. Not necessary cable text. Airmail letters to Valosek post office box HQs. 2. Expect no need further MEXI STA support. However, if it requires emergency assistance MEXI he will write to Ref B address using stationery of MEXI hotel where he staying. MEXI case officer should telephone T-1 at hotel at 2000 HQs on day letter received stating he friend 'Carl Martin', lay on contact. This plan based assumption Ref A address serviced daily. If incorrect or plan otherwise unsatisfactory MEXI. PLS advise preferred emergency contact plan. 3. Will reply Ref C separately." Releasing Officer: Chief, WH. Authenticating Officer: Fred E. Hubbard, C/WH/5.
12/18/63: Cable from Director to Mexico City: CITE DIR 88975: DIR 89974*: "IDEN - Jan Erik Kronholm. *Cable Sec.: PLS ref attached cable." Releasing Officer: Chief, WH. Authenticating Officer: Fred E. Hubbard, C/WH/5.