File:Type printing telegraph, David E. Hughes, from 1855 AD, TeM43985 - Tekniska museet - Stockholm, Sweden - DSC01638.JPG - Wikimedia Commons
![David Hughes's printing telegraph. This was powered by clockwork, with a driving weight of about 50kg. David Hughes was a British-American inventor, practical experimenter, and professor of music known for his work David Hughes's printing telegraph. This was powered by clockwork, with a driving weight of about 50kg. David Hughes was a British-American inventor, practical experimenter, and professor of music known for his work](https://c8.alamy.com/comp/HHG6M0/david-hughess-printing-telegraph-this-was-powered-by-clockwork-with-HHG6M0.jpg)
David Hughes's printing telegraph. This was powered by clockwork, with a driving weight of about 50kg. David Hughes was a British-American inventor, practical experimenter, and professor of music known for his work
![Hughes electric printing telegraph, 19th century illustration - Stock Image - C058/7884 - Science Photo Library Hughes electric printing telegraph, 19th century illustration - Stock Image - C058/7884 - Science Photo Library](https://media.sciencephoto.com/c0/58/78/84/c0587884-800px-wm.jpg)