File:ACA logo old-1.gif

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ACA_logo_old-1.gif (432 × 228 pixels, file size: 15 KB, MIME type: image/gif)

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Summary

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Description
English: Old logo of the American Cryptogram Association (http://cryptogram.org/ ), displaying a Spartan Scytale.
Date or earlier
Source Louis Kruh (1989): "The Heraldry of Cryptology", Cryptologia, Oct 1984 & Jan 1989 [1], [2]
Author American Crpytogram Association (ACA)
Permission
(Reusing this file)		 The original black and white logo... appeared on the cover of "Elementary Cryptanalysis: A Study of Ciphers and Their Solution" by Helen Fouché Gaines. That book was published in 1939 and registered for copyright (A134084). However, it's copyright was not renewed and thus that particular black and white logo on the cover is now in the public domain. See Commons:Village_pump/Copyright#American_Cryptogram_Association_logo.
Other versions File:American Cryptogram Association logo.png : modern post-1989 version of ACA logo, still copyrighted.


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Licensing

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Public domain
This work is in the public domain because it was published in the United States between 1930 and 1963, and although there may or may not have been a copyright notice, the copyright was not renewed. For further explanation, see Commons:Hirtle chart and the copyright renewal logs.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties.

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File history

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Date/TimeThumbnailDimensionsUserComment
current05:28, 16 November 2013Thumbnail for version as of 05:28, 16 November 2013432 × 228 (15 KB)32RB17 (talk | contribs)Original palette with 256 tones of grey.
05:09, 16 November 2013Thumbnail for version as of 05:09, 16 November 2013432 × 228 (7 KB)32RB17 (talk | contribs){{Information |Description ={{en|1=Old logo of the "American Cryptogram Association" http://www.aca.org }} |Source =Louis Kruh (1989): "The Heraldry of Cryptology", ''Cryptologia'', Oct 1984 /Jan 1989 [http://www.asalives.org/ASAONLINE/heral...

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