File:British Cypher No. 5.jpg

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Description	Front cover of British Cypher No. 5 code booklet, used by the British Admiralty during WW2 and the interwar period.
Source	http://www.cix.co.uk/~klockstone/codebook.htm
Date	1921
Author	British government
Permission (Reusing this file)	See below.

This work created by the United Kingdom Government is in the public domain.

This is because it is one of the following:

It is a photograph taken prior to 1 June 1957; or
It was published prior to 1974; or
It is an artistic work other than a photograph or engraving (e.g. a painting) which was created prior to 1974.

HMSO has declared that the expiry of Crown Copyrights applies worldwide (ref: HMSO Email Reply)
More information.

See also Copyright and Crown copyright artistic works.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	18:00, 1 April 2017		688 × 882 (478 KB)	TedColes (talk \| contribs)	Lightened image
	13:41, 1 April 2017		688 × 882 (77 KB)	Scope creep (talk \| contribs)	Uploading a public-domain item using File Upload Wizard

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Width	688 px
Height	882 px
Bits per component	8 8 8
Pixel composition	RGB
Orientation	Normal
Number of components	3
Horizontal resolution	100 dpi
Vertical resolution	100 dpi
Software used	Adobe Photoshop Elements 11.0 Windows
File change date and time	18:57, 1 April 2017
Exif version	2.21
Color space	sRGB
Unique ID of original document	97B880F10595C20A1D982203F2EF654B
Date and time of digitizing	19:55, 1 April 2017
Date metadata was last modified	19:57, 1 April 2017
IIM version	52,320