4in1
by idb & friends
articles
files
wiki
about
invisible college
Files
W.F.F. Archive
Patent and Equipment Records
Description of the General Principles of an Invention of A Machine for Locating Idiomorphs and Isomorphs In Cryptanalysis, 1937-1938
Cipher Machine
Document A4146528
56.87 KiB
PDF
Description of the General Principles of an Investigation of A Machine for Locating Idiomorphs and Isomorphs In Cryptanalysis
Document A4146524
314.81 KiB
PDF
Invention of A Cryptanalytic Coincidence Counter
Document A4146526
209.75 KiB
PDF
Mechanical Decoding and Preparation Procedures
Document A4146531
94.01 KiB
PDF
Show more