Item Detail Information
OP-20-G file on Army-Navy collaboration, 1931-1945.
Book
OP-20-G file on Army-Navy collaboration, 1931-1945.
Copies
2 Total copies, 2 Copies are in, 0 Copies are out.
Contains copies of original documents and memoranda concerning the development of joint cryptography and communications activities between the U.S. Army and Navy before and during World War II.
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Title
OP-20-G file on Army-Navy collaboration, 1931-1945.
Subjects
World War, 1939-1945--Cryptography--History--Sources.
Communications, Military--Security measures.
World War, 1939-1945--Communications.
Language
English
Published
[s.l. : s.n.], 1931-1945.
Publication Desc
2 v. ;
Dimensions
37 cm.