File:British SYKO Strip Cipher.jpg

No higher resolution available.

British_SYKO_Strip_Cipher.jpg (270 × 369 pixels, file size: 47 KB, MIME type: image/jpeg)

Summary

Media data and Non-free use rationale
Description	British SYKO Strip Cipher Example
Author or copyright owner	Unknown
Source ( WP:NFCC#4 )	https://people.duke.edu/~ng46/collections/crypto-disk-strip-ciphers.htm
Date of publication	1945
Use in article ( WP:NFCC#7 )	General der Nachrichtenaufklärung Training Referat
Purpose of use in article ( WP:NFCC#8 )	To support encyclopedic discussion of this work in this article. The illustration is specifically needed to support the following point(s): Displays the general build structure of the SKYO Strip Cipher, i.e. what it actually looks like. Examination of the security of the British SYKO Strip Cipher.
Not replaceable with free media because ( WP:NFCC#1 )	No other public domain images available.
Minimal use ( WP:NFCC#3 )	Image is very small and been sized to fit.
Respect for commercial opportunities ( WP:NFCC#2 )	Other colour images are known to exist.
Fair useFair use of copyrighted material in the context of General der Nachrichtenaufklärung Training Referat//en.wikipedia.org/wiki/File:British_SYKO_Strip_Cipher.jpgtrue

Licensing

This image is a faithful digitisation of a unique historic image, and the copyright for it is most likely held by the person who created the image or the agency employing the person. It is believed that the use of this image may qualify as non-free use under the Copyright law of the United States. Any other uses of this image, on Wikipedia or elsewhere, may be copyright infringement. See Wikipedia:Non-free content for more information.

Please remember that the non-free content criteria require that non-free images on Wikipedia must not "[be] used in a manner that is likely to replace the original market role of the original copyrighted media." Use of historic images from press agencies must only be of a transformative nature, when the image itself is the subject of commentary rather than the event it depicts (which is the original market role, and is not allowed per policy). Fair use

To the uploader:

Please add a detailed non-free use rationale for each article the image is used in, which must also declare compliance with the other parts of the non-free content criteria, as well as the source of the work and copyright information.
For example non-free use rationales, see Wikipedia:Use rationale examples.
Template:Non-free use rationale 2
may be helpful for stating the rationale.

To patrollers and administrators: If this image has an appropriate rationale please append |image has rationale=yes as a parameter to the license template.

If this tag does not accurately describe this image, please replace it with an appropriate one.

File history

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Thumbnail	Dimensions	User	Comment
current	BOT - disable )
	00:09, 5 October 2018	No thumbnail	300 × 410 (65 KB)	File Upload Wizard

You cannot overwrite this file.

File usage

The following page uses this file:

General der Nachrichtenaufklärung Training Referat

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.

If the file has been modified from its original state, some details may not fully reflect the modified file.

Camera manufacturer	Exif version	2.2
Date and time of digitizing	0:34
Meaning of each component	Y Cb Cr does not exist