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32 pages • first pub 1979 (editions)
ISBN/UID: None
Format: Not specified
Language: English
Publisher: Not specified
Publication date: Not specified
nonfiction
childrens
history
informative
fast-paced
Description
More codes for cryptoanalysts to crack, many with jokes or riddles for answers. Includes among others, a Code-a-Nut Tree and Backflip Triple Decker codes.
Community Reviews
Content Warnings
32 pages • first pub 1979 (editions)
ISBN/UID: None
Format: Not specified
Language: English
Publisher: Not specified
Publication date: Not specified
nonfiction
childrens
history
informative
fast-paced
Description
More codes for cryptoanalysts to crack, many with jokes or riddles for answers. Includes among others, a Code-a-Nut Tree and Backflip Triple Decker codes.
Community Reviews
Content Warnings