National Telephone Co. Ltd.

National Telephone Company directory, 1898-1899

Wall telephone No. 1, 1900-1911

Sinclair Line Selector Automatic Switch Board, 1880-1890

National Telephone Company telephone receiver, 1881-1911

Electrophone table, by National Telephone Company, England, c.1895-1925

Sinclair Line Selector Automatic Switch Board, 1886

Bell for Sinclair line selector, 1880-1890

Sinclair line selector step-by-step sending instrument, 1880-1890

National Telephone Company indoor telephone kiosk

Bracing sheets with associated fittings for telephone H poles, c. 1898

Leclanché cell telephone battery

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