Alexander Graham Bell demonstrated this type of phone when he visited Britain in 1877-78. ![]() Above: Bell’s box telephone, on display in the Communicate gallery. The sounds reproduced by it were sufficiently loud to be audible to a large audience, the words having been shouted into a similar instrument in Boston, 26 km away. A replica of Alexander Graham Bell’s experimental telephone of 1876, similar in shape to the human larynx and vocal chords. A large instrument of this type was also used during a demonstration at the Essex Institute, Salem, Mass., on 12 February 1877. It was used at the Lloyds Signal Station in Cornwall. The small horn could be used as both a mouthpiece and an earpiece. It was the first telephone to use a permanent magnet, which avoided the need for a battery. It was sometimes called a 'box' telephone, due to the shape of the cover which normally protected the magnet and coils. ![]() This form of magnetic telephone, patented by Alexander Graham Bell (1847-1922), was one of the first to be brought into practical use, and demonstrates the transition from his early experimental telephones to a more practical one. In 1880 the first phone book was published, and an important court judgment granted the Post Office monopoly on telephone services. The mouth/ear piece is not original and was added by the museum in 1906. Alexander Graham Bell demonstrated the telephone to Queen Victoria in 1878, and in 1878 the Telephone Company Ltd was formed to market Bell's phones in Britain. Bell telephone instrument used at Lloyds station, patented by Alexander Graham Bell, unknown maker, British, 1877.
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