File:Morse telegraph Register 0642.jpg
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:08, 25 March 2019 | | 1,849 × 1,500 (276 KB) | Administrator1 (talk | contribs) | |
| 16:40, 18 November 2008 |  | 640 × 453 (29 KB) | Leydoig (talk | contribs) | Copyright held by Smithsonian |
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