Christos T. • June 27, 2024 12:44 AM

@sqall:

In 1947 the US occupation authorities retrieved the files of the German Army’s codebreaking agency, called Inspectorate 7/VI. These had been buried at the end of the war in a camp in Austria.

The list of the documents that were retrieved is available from NARA as TICOM report IF-272 Tab ‘D’:
https://catalog.archives.gov/id/2811501

In page 12 of that report, it says: ‘Technische Erlaeuterung zur maschinellen Bearbeitung von AM 1 Kompromisstextloesungen auf der Texttiefe’.
The translation of that report is TICOM DF-114 ‘GERMAN CRYPTANALYTIC DEVICE FOR SOLUTION OF M-209 TRAFFIC’ and was released by the NSA to NARA in 2011 and copied and uploaded by me to Scribd and Google drive in 2012.

You can find it at NARA: https://catalog.archives.gov/id/23889821