Editing Openai/692c8201-7a4c-800d-9ca0-5220fef3e400 (section)

=== I searched the public NSA and archive collections you specified looking for a scanned Arlington Hall working worksheet that contains all three elements you requested: ciphertext 5-digit groups, the reused pad additive fragments (the “depth”), and the analyst’s handwritten digit-by-digit subtraction arithmetic. I did targeted checks of the NSA Venona pages, the NSA monographs and release packets, the 1995–1996 release indices, and the National Security Archive (GWU) Venona material. I list the exact documents and pages I inspected and the result for each. ===
# NSA — “VENONA: An Overview” / Venona Story (NSA monograph) - File: venona_story.pdf (NSA cryptologic heritage pages). I opened and reviewed the sections describing the Venona cryptanalysis and the released translations (see especially the discussion of Meredith Gardner, depth discovery, and the translations). Example reference lines: pp. 12–17 (history and method). nsa.gov<ref>{{cite web|title=nsa.gov|url=https://www.nsa.gov/portals/75/documents/about/cryptologic-heritage/historical-figures-publications/publications/coldwar/venona_story.pdf|publisher=nsa.gov|access-date=2025-11-30}}</ref> - Result: Describes method and translations; does not include a scanned analyst worksheet showing ciphertext 5-digit groups plus internal pad fragments and handwritten digit subtraction.
# Wilson Center / Library of Congress compilation — “Venona — New York KGB Station: Moscow Center Cables, 1944” - File: Venona-New-York-KGB-1944.pdf (Wilson Center). I opened the PDF and examined the entries; for example message No. 954 (20 Sept 1944) is present and the final decrypted/translated plaintext and editorial notes are shown. See pp. ~277–279 for message No. 954. Wilson Center<ref>{{cite web|title=Wilson Center|url=https://www.wilsoncenter.org/sites/default/files/media/documents/article/Venona-New-York-KGB-1944.pdf|publisher=Wilson Center|access-date=2025-11-30}}</ref> - Result: Contains the published translations and editorial notes (including indications such as “[14 groups unrecovered]”), but does not include the Arlington Hall internal worksheet image showing raw ciphertext groups plus matching pad fragments and the working arithmetic.
# NSA Venona public release page / index (NSA FOIA / Venona landing page) - I reviewed the Venona landing pages and the released translation packet listings to identify any attached scanned case files. The NSA Venona portal collects the public monograph and translation products. nsa.gov<ref>{{cite web|title=nsa.gov|url=https://www.nsa.gov/Helpful-Links/NSA-FOIA/Declassification-Transparency-Initiatives/Historical-Releases/Venona/|publisher=nsa.gov|access-date=2025-11-30}}</ref> - Result: The portal links public monographs and translation collections; it does not contain the internal analyst working worksheets or a FOIA PDF that reproduces an analyst’s handwritten subtraction worksheet showing both ciphertext and reused pad fragments.
# National Security Archive (nsarchive.gwu.edu) — FOIA documents and Venona-related materials - Searched NSArchive content and the FOIA/briefing-book pages for Venona packets and attachments. I inspected several NSArchive Venona results and attached PDFs (their Venona-related briefing material and the OCR text of NSA cryptologic publications). Example items in the archive were examined. nsarchive.gwu.edu<ref>{{cite web|title=nsarchive.gwu.edu|url=https://nsarchive.gwu.edu/sites/default/files/documents/rr5yuw-ir4q9/episode-6-03.pdf|publisher=nsarchive.gwu.edu|access-date=2025-11-30}}</ref> - Result: NSArchive hosts the published Venona translations and related secondary material, but I did not find a scanned Arlington Hall working worksheet with the original handwritten numeric subtraction and pad depth fragments in the public NSArchive files.
# Other related releases / declassification packets - I checked the published Venona release compilations and other public documents (for example the combined declassification summaries and other Venona translation compilations). These releases show final translations and editorial notes but not the internal working worksheets. Examples: the larger Venona translation compilations and NSA oral histories referencing worksheets. nsa.gov<ref>{{cite web|title=nsa.gov|url=https://www.nsa.gov/portals/75/documents/about/cryptologic-heritage/historical-figures-publications/publications/coldwar/venona_story.pdf|publisher=nsa.gov|access-date=2025-11-30}}</ref> - Result: No scanned analyst worksheet containing ciphertext groups and pad fragments was present in the public PDFs I reviewed.

Conclusion from the FOIA / archive search:
I was unable to locate any publicly available FOIA or archival PDF in the public NSA/Venona/NSArchive releases that contains the original Arlington Hall working worksheet you requested — that is, a scanned page showing the exact ciphertext 5-digit groups, the matching reused pad additive fragments (the depth), and the analyst’s handwritten digit-by-digit subtraction arithmetic. The public releases contain authoritative descriptions of the method, message numbers, and the final translations and notes, but not the internal handwritten arithmetic worksheets. The specific files I inspected (and which support this conclusion) are the two most relevant public sources: the NSA Venona monograph (venona_story.pdf) and the large Wilson Center / Library of Congress compilation Venona-New-York-KGB-1944.pdf. nsa.gov<ref>{{cite web|title=nsa.gov|url=https://www.nsa.gov/portals/75/documents/about/cryptologic-heritage/historical-figures-publications/publications/coldwar/venona_story.pdf|publisher=nsa.gov|access-date=2025-11-30}}</ref>

If you want, I can continue searching more deeply in the NSA FOIA reading rooms for specific FOIA request numbers or archived box inventories (that may require locating particular FOIA release package IDs or direct FOIA case files). that is a separate, deeper archival search step. Based on the public material I inspected, however, it appears those detailed working worksheets were not included in the mainstream 1995–1996 public translation release packets.