1954
1956

1955

Green Siemens FG TST 282
Green Siemens FG TST 282
Siemens
Heemaf Desk Telephone
Heemaf Desk Telephone
Siemens and Halske Fg tist 269b with charge counter
Siemens and Halske Fg tist 269b with charge counter
Siemens
WE 5302
WE 5302
Western Electric
GTE Acquires Automatic Electric
PDF: 1955 Central Office Equipment
1955 Central Office Equipment
Ad: 'Inside the phone'
'Inside the phone'
Photo: GTE Acquires Automatic Electric
GTE Acquires Automatic Electric
Video: Dialing the Nation (AT&T)
Dialing the Nation (AT&T)
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