File:PSM V23 D562 The reis telephone transmitter of 1861.jpg

From Wikisource
Jump to navigation Jump to search

Original file (983 × 780 pixels, file size: 42 KB, MIME type: image/jpeg)

Description The Reis telephone transmitter of 1861
Date
Source Popular Science Monthly Volume 23
Author Unknown authorUnknown author
Permission
(Reusing this file)
Public domain

This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer.


You must also include a United States public domain tag to indicate why this work is in the public domain in the United States.

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

43,187 byte

780 pixel

983 pixel

image/jpeg

c38b7439e5a5a9124d9f5ae158f03191a11a7e57

File history

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

Date/TimeThumbnailDimensionsUserComment
current17:07, 18 September 2014Thumbnail for version as of 17:07, 18 September 2014983 × 780 (42 KB)IneuwCleaned image and improved contrast
16:11, 30 August 2010Thumbnail for version as of 16:11, 30 August 20101,026 × 788 (49 KB)Ineuw{{Information |Description = The Reis telephone transmitter of 1861 |Source = http://en.wikisource.org/wiki/Page:Popular_Science_Monthly_Volume_23.djvu/562 |Date = 1883 |Author = Unknown |Permission = {{PD-old}} |other_versions = }} [[Category:Pop

Global file usage