Very soon after the dial-telegraph began to be used, printing telegraph instruments for private-line purposes superseded them.
"Electricity and Magnetism" by Elisha Gray
The type-printing telegraph was coeval with the dial, and originated with Morse and Vail as early as 1837.
"Inventions in the Century" by William Henry Doolittle
The telegraph remained silent, the indicator on the dial still pointing to "Full Ahead".
"The Wireless Officer" by Percy F. Westerman
The Dial Telegraph is still another modification of the telegraph.
"The Progress of Invention in the Nineteenth Century." by Edward W. Byrn