First Telephone Used to Help Escaping Slaves (Nov, 1933)
First Telephone Used to Help Escaping Slaves
America’s oldest telephone, pictured here, was used before the Civil War by abolitionists who helped negroes escape. It consisted of a wire attached between drumlike boxes containing diaphragms. A ringing bell announced that a message was to be sent.
[...] you know that the first telephones created were used to help escaping slaves during the civil war days? peep the picture from popular science magazine from 1933. other [...]
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[...] drumlike boxes containing diaphragms. A ringing bell announced that a message was to be sent.http://blog.modernmechanix.com.....aves/Brady Civil War Photos on footnoteSearch and browse original documents and images from the Mathew B [...]
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