File:Optical telegraph 1810 drawing by Hans Gloersen, Norway, Napoleonic Wars 1810.jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Original file ‎(3,047 × 3,900 pixels, file size: 2.4 MB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary[edit]

Description
English: Drawing of optical telegraph, by norwegian telegraph operator Hans Gløersen, during the Napoleonic wars.
Date
Source Rinde, harald: Et telesystem tar form 1855-1920, Gyldendal 2005
Author Unknown authorUnknown author

Licensing[edit]

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.

File history

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

Date/TimeThumbnailDimensionsUserComment
current22:34, 18 April 2012Thumbnail for version as of 22:34, 18 April 20123,047 × 3,900 (2.4 MB)Bjoertvedt (talk | contribs)

You cannot overwrite this file.

There are no pages that use this file.

File usage on other wikis

The following other wikis use this file:

Metadata

This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:Optical_telegraph_1810_drawing_by_Hans_Gloersen,_Norway,_Napoleonic_Wars_1810.jpg&oldid=220930282"