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Typex encryption machine at Bletchley Park. This is a post-war Typex 22 or 23 with two types of plugboard.

The photograph is part of Caroline and Tom Yates' image gallery [1]. The author has agreed to license this photograph under the GFDL as detailed below after an email exchange.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue

	This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
	You are free: to share – to copy, distribute and transmit the work to remix – to adapt the work Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
	This licensing tag was added to this file as part of the GFDL licensing update.http://creativecommons.org/licenses/by-sa/3.0/CC BY-SA 3.0Creative Commons Attribution-Share Alike 3.0truetrue

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i license the photos with the following sha1sums:
8ba64b6e669db314d662c62b63ec33bef10a6f16  p5120012.jpg
63407ea1500c8d635a7b28046276107f7e55ee4c  p5120015.jpg
7f03bb6774fef95d58811ecbe5a215c2fc7b4e23  p5120018.jpg
219274644fb6ce89029c68811cad9813fea3e755  p5120021.jpg

reference copies of which can currently be found at:
http://php.teaparty.net/gallery/bp2004/p5120012?full=1
http://php.teaparty.net/gallery/bp2004/p5120015?full=1
http://php.teaparty.net/gallery/bp2004/p5120018?full=1
http://php.teaparty.net/gallery/bp2004/p5120021?full=1

nonexclusively, to you and the world, under the terms of the GFDL, version
1.2 or at your discretion any later version published by the Free Software
Foundation, with no invariant sections nor front nor back matter.

i certify that rights in these photos are mine to assign.

Tom Yates (madhatter@teaparty.net)

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