1870s 1880s 1890s 1900s 1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s
1946
1948
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1947

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Ericsson DBH-15
Ericsson DBH-15
L.M. Ericsson
Kellogg 1000 Redbar
Kellogg 1000 Redbar
Kellogg Switchboard and Supply
Leich #60 Extension Phone
Leich #60 Extension Phone
Leich
England recruits operators amid postwar shortage
England recruits operators amid postwar shortage
PDF: AT&T Annual Report, 1947
AT&T Annual Report, 1947
Ad: C&P Telephone postwar recruiting ad
C&P Telephone postwar recruiting ad
Photo: James Stewart and Ned Sparks
James Stewart and Ned Sparks
Video: A Million Times a Day
A Million Times a Day
1947 NFTW telephone strike
1947 NFTW telephone strike
PDF: Bltn #815: Selectophone
Bltn #815: Selectophone
Video: Western Electric Mobile Telephone Service video
Western Electric Mobile Telephone Service video
Communication Workers of America (CWA) formed
Communication Workers of America (CWA) formed
PDF: Kellogg 1000 X-Ray Explainer
Kellogg 1000 X-Ray Explainer
Transistor invented at Bell Labs
Transistor invented at Bell Labs
PDF: Kellogg Masterdial Xray Explainer
Kellogg Masterdial Xray Explainer