Log Cabin Memorial - 314th Infantry - William F. Friedman American Army Field Codes in the AEF during World War One WW1

Log Cabin Memorial - Veterans 314th Infantry Regiment A.E.F.

William F. Friedman American Army Field Codes in the AEF during World War One

This 264 page PDF book was gratefully downloaded from:
https://www.nsa.gov/news-features/declassified-documents/friedman-documents/assets/files/publications/FOLDER_267/41784809082383.pdf

For more information about William F. Friedman, please see:

"William Friedman: A Life in Cryptology" Exhibit Opens at the National Cryptologic Museum
Wikipedia: William F. Friedman
NSA infographics: William F. Friedman by the numbers
Patents Respecting Inventions of William F. Friedman
Friedman has the distinction of having one of the longest known suppressed patent applications, for U.S. Patent 6,097,812, a patent for a "cryptographic system". It was filed on July 25, 1933, issued on August 1, 2000.

(click any of the images below, to download the 264-page 11.9 Megabyte PDF file)

William F. Friedman American Army Field Codes in the AEF during World War One WW1 - page 1

William F. Friedman American Army Field Codes in the AEF during World War One WW1 - page 2

William F. Friedman American Army Field Codes in the AEF during World War One WW1 - page 3

William F. Friedman American Army Field Codes in the AEF during World War One WW1 - page 4

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