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British WW II Codebook Online

Posted by jamie on from the real-dead-trees dept.

An A.C. pointed out Keith Lockstone's website which contains a complete scan of the Second World War codebook "British Cypher No. 5." An interesting look into history. "...when on 10 June [1943] the Admiralty at last replaced Naval Cipher No. 3 with No. 5, which proved quite secure, it was plain that the U-boats could never regain their former authority."

1 of 37 comments (clear)

  1. PDF alternative and copyrights by jw3 · · Score: 3
    First - I don't think this is a copyright violation - the book has 235 pages, and only 10% of them are reproduced, which is roughly what you may reproduce from a book or article without permission (as far as I know, of course).

    Second, BEWARE. This page is lame - all gifs on a single page, and they are HUGE. For my own purposes I downloaded them with wget, converted to ps and finally produced one single PDF file. You can download it here. This is my student account, and in Germany, so if someone can put it for all the slashdotters in USA on an american server and notify me I would be grateful.

    Regards,

    January