File:PSM V23 D562 The reis telephone transmitter of 1861.jpg
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Size of this preview: 756 × 600 pixels. Other resolutions: 303 × 240 pixels | 605 × 480 pixels | 983 × 780 pixels.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 17:07, 18 September 2014 | 983 × 780 (42 KB) | Ineuw | Cleaned image and improved contrast | |
16:11, 30 August 2010 | 1,026 × 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 |
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