( Copyright (c) 2019, Tom Perera and Dan Perera )
The "www.EnigmaMuseum.com - Enigma Museum

This page contains cumulative updates, revisions, and corrections to the information in the SECOND EDITION of the book: "INSIDE ENIGMA" by Tom Perera and Dan Perera; published in 2019. The SECOND EDITION contains almost twice as much information as the first edition and over 150 additional illustrations

Updates for the FIRST EDITION of the book may be found at:

Updates for the Enigma Library CD-ROM may be found at: http://EnigmaMuseum.com/mecdcor.htm

New information about cipher machines is constantly coming to light as historic government archives are declassified and studied by historians. This information as well as corrections and revisions will be added to this page as often as required.

If you have any corrections, suggestions, additions or can supply photographs and/or additonal information to make future editions of my book and Enigma Library CD-ROM better and more accurate, please email us using the address at the bottom of this page. Thanks.

On 27 June, 2009, we published the 4th. edition of the CD-ROM entitled: "The Story of the ENIGMA: History, Technology and Deciphering"
It is the most complete source of information on the Enigma in a single publication. It contains twice the material in the 3rd edition and includes a complete History, Thousands of Photographs, Books, Wiring Diagrams, Enigma Simulator Programs, Videos, Information on the Russian cipher machine FIALKA and many others. Click above for more information.
(Revisions & Corrections for all Enigma CD-ROM editions:)

25 January, 2019:
This page was first published on the internet.

9 May, 2019:
We inadvertently left out a very fine website by the late Tony Sale. It covers a great deal of Enigma history and the work of the Polish and British Codebreakers as well as the more advanced codebreaking work at Bletchley Park:
Tony Sale's Enigma History Website: http://codesandciphers.org.uk

Please send us any corrections or additions so that we can make this page and future editions of the book as complete as possible.

Professor Emeritus Thomas B. Perera Ph. D. and Dan Perera.

Internet On-Line ENIGMA Museum: http://EnigmaMuseum.com
Internet On-Line Telegraph & Scientific Instrument Museums:

COPYRIGHT NOTICE: (Copyright (c) 2018: Prof. Tom Perera Ph. D. and Dan Perera)
Although all the pictures and text in these internet pages are copyrighted, you may use any of them for your own personal applications including public lectures and demonstrations, publications and websites as long as you mention the www.EnigmaMuseum.com Enigma Museum. If you plan to offer them for sale to the public in any form, you must email us for permission which we will generally grant as long as you mention our museum: http://EnigmaMuseum.com. Our email address is given at the bottom of this page. Some of the material may require contacting other copyright owners for commercial use and we will inform you about this by email. Please also see the disclaimer of warranty.