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1954
1956
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1955

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Green Siemens FG TST 282
Green Siemens FG TST 282
Siemens
Heemaf Desk Telephone
Heemaf Desk Telephone
Siemens and Halske Fg tist 269b with long distance charge counter
Siemens and Halske Fg tist 269b with long distance charge counter
Siemens
WE 5302
WE 5302
Western Electric
Solar battery in development at Bell Labs
Solar battery in development at Bell Labs
PDF: 1955 Central Office Equipment
1955 Central Office Equipment
Ad: 'Inside the phone'
'Inside the phone'
Video: Dialing the Nation (AT&T)
Dialing the Nation (AT&T)
GTE Acquires Automatic Electric
GTE Acquires Automatic Electric
PDF: AT&T Annual Report 1955
AT&T Annual Report 1955
Ad: Lighted dial
Lighted dial
PDF: The History of Lincoln Tel.
The History of Lincoln Tel.
PDF: This is Automatic Electric
This is Automatic Electric