Background
According to the document:
“PBJOINTLY (the Berlin Tunnel project) came into being sometime in 1952 (the exact date cannot be established) and ceased as an active operation in the summer of 1956. The writer served as Headquarters case officer on the project from the winter of 1952-1953 until the summer of 1954 and then as the field case officer until February 1955.”
The below is the Clandestine Services History paper that was published in 1968. It appears that it was first released (or at least, that is the date of the last review) in 2007. However, in March of 2018, I requested a Mandatory Declassification Review (MDR) of the record. In March of 2019, about a year later, I received a much less redacted version. In fact, there were many new pages released in full, that were previously 100% redacted.
Document Archive
Clandestine Services History, The Berlin Tunnel Operations, 1952-1956, Published 24 June 1968 – 2019 Release (Highlighted Version) [102 Pages, 28.3MB] – All information highlighted in this version is new, previously redacted, information.
Clandestine Services History, The Berlin Tunnel Operations, 1952-1956, Published 24 June 1968 – 2007 Release [101 Pages, 2.2MB]
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