Drawing of the Electromagnetic Telegraph and Alpha Code
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Download IIIF ManifestRequest permissionsDownload image PrintID: SIA2011-0828
Creator: Vail, Alfred
Form/Genre: Document
Date: c. 1844
Citation: Smithsonian Institution Archives, Record Unit 7055, Box 5, Folder: 7
These are two pages from Alfred Vail's experiment notebook. On the left page is his drawing of the electromagnetic telegraph, and on the right page is the alpha code, better know as Morse Code, that Vail developed for sending messages using the electromagnetic telegraph.
Morse, Samuel Finley Breese 1791-1872
Historic Images of the Smithsonian
Smithsonian Institution Archives, Record Unit 7055, Box 5, Folder: 7
Institutional History Division, Smithsonian Archives, 600 Maryland Avenue, SW, Washington, D.C. 20024-2520, SIHistory@si.edu
c. 1844
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United States
SIA2011-0828
Number of Images: 1; Color: Color; Size: 12.75w x 7.75h; Type of Image: Document; Medium: Paper