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American Bell Telephone stock certificate
1880 American Bell Telephone stock certificate event
New York's central telephone exchange office
1880 New York's central telephone exchange office event
Sise founds Bell Telephone Company of Canada
1880 Sise founds Bell Telephone Company of Canada event
Bell turns his focus to the Photophone
1880 Bell turns his focus to the Photophone event
Ordinary Bell telephone
1880 Ordinary Bell telephone
French engraving with early Bell phones
1880 French engraving with early Bell phones
American Bell stock certificate
1880 American Bell stock certificate
Bell Canada stock certificate
1880 Bell Canada stock certificate
Western Union Charleston West Virginia office, 1880
1880 Western Union Charleston West Virginia office, 1880
Operators working at 'pyramid' switchboard
1881 Operators working at 'pyramid' switchboard event
1881 ad in Boston phone directory
1881 1881 ad in Boston phone directory
National Telephone Company logo
1881 National Telephone Company logo event
Bell Telephone Manufacturing Company (BTMC) logo
1882 Bell Telephone Manufacturing Company (BTMC) logo event
Operators at Boston's Tremont St central office
1883 Operators at Boston's Tremont St central office
Stockholms Allmänna Telefonaktiebolaget logo
1883 Stockholms Allmänna Telefonaktiebolaget logo
Moses Parker N.E. Tel reissued stock certificate
1883 Moses Parker N.E. Tel reissued stock certificate event
Ericsson's Tulegatan factory
1884 Ericsson's Tulegatan factory event
Acoustic telephone
1886 Acoustic telephone
Gray patents the coin-operated payphone mechanism
1889 Gray patents the coin-operated payphone mechanism event