Cryptonym: AESTORAGE

104-10093-10102: CABLE RE CONTACTS WITH LEONOV

10/22/63 cable from Mexico City to Director, slugline REDCAP LCIMPROVE: "(In) view (of) belated ref identification of Leonov as KGB. Believe it would be worthwhile (to) have HQs retrace entire local Sov complement with AESTORAGE and other sensitive sources for (Russian intelligence services) connection. Please advise."

104-10218-10008: LEONOV, NIKOLAY SERGEYEVICH.

Undated memo: "Subject: AESTORAGE No. 984. Nikolay LEONOV (201-132139), DOI: 1964. Note: AESTORAGE represents a collection of information REDACTED some of them documentary. AESTORAGE information is not to be released outside the Clandestine Services Components of CIA unless written authorization has been granted by C/SR/CI. AESTORAGE information may be transmitted to CIA field stations only after it has been coordinated with C/SR/CI. Subject is an officer in the Fifth Department (Latin American), First Chief Directorate (Foreign Intelligence)."

104-10218-10008: LEONOV, NIKOLAY SERGEYEVICH.

3/11/64 memo: "Subject: AESTORAGE No. 928. Nikolay Sergeyevich LEONOV (201-132139), DOI: 1962. Note: AESTORAGE represents a collection of information provided by several reliable and sensitive sources, some of them documentary. AESTORAGE information is not to be released outside the Clandestine Services Components of CIA unless written authorization has been granted by C/SR/CI. AESTORAGE information may be transmitted to CIA field stations only after it has been coordinated with C/SR/CI."