File:PSM V03 D428 Type and printing shaft.png

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Original file (1,653 × 1,277 pixels, file size: 427 KB, MIME type: image/png)

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Description
English: Morse code Type and printing shaft
Date
Source Popular Science Monthly Volume 3
Author Unknown authorUnknown author

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Public domain
Public domain
This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.

United States
United States
This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.

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Date/TimeThumbnailDimensionsUserComment
current04:18, 21 May 2012Thumbnail for version as of 04:18, 21 May 20121,653 × 1,277 (427 KB)Ineuw