Two illustrations depicting components of the electric printing telegraph system patented in 1845 by English telegraph engineer John Watkins Brett (1805-1863). Brett's design consists of a piano-style keyboard linked to a typewheel by wire.
Turnbull, Laurence. “Brett's Electric Printing Telegraph.” The Electro Magnetic Telegraph: with an Historical Account of Its Rise, Progress, and Present Condition . Philadelphia, Pennsylvania, 1853. https://digital.sciencehistory.org/works/e2xwdyb.
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