AE 40
AE 40
1939
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Western Electric 505C Cordless Oak Switchboard
Western Electric 505C Cordless Oak Switchboard
1930
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Salvadore Dali Lobster Telephone: White Version
Salvadore Dali Lobster Telephone: White Version
1936
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Rural Telphone Lines
Rural Telphone Lines
1937
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Conference Telephone Service
AT&T / Bell System ad
1939
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Russell Ohl
Russell Ohl
Pioneered P-N junctions for solar cells
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Strowger 1931 Dial Telephones catalog
Strowger 1931 Dial Telephones catalog
1931
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AT&T Annual Report, 1936
AT&T Annual Report, 1936
1936
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AT&T Annual Report, 1932
AT&T Annual Report, 1932
1932
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Harvey Fletcher
Harvey Fletcher
Bell Lab physicist and speech expert
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British Dictograph
Dictograph Products ad
1936
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Gray 1935 Pay Station Catalog
Gray 1935 Pay Station Catalog
1935
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Warren P. Mason
Warren P. Mason
Distributed-element circuit pioneer
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Kellogg 700
Kellogg 700
1938
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Kellogg Model 900 'Pyramid'
Kellogg Model 900 'Pyramid'
1933
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AT&T Annual Report, 1937
AT&T Annual Report, 1937
1937
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Ericsson 1934 catalog (3)
Ericsson 1934 catalog (3)
1934
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Red 332
Red 332
1937
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Kellogg 1936 Catalog
Kellogg 1936 Catalog
1936
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Stromberg-Carlson 1936 Catalog
Stromberg-Carlson 1936 Catalog
1936
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Red AE50 Jukebox
Red AE50 Jukebox
1937
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S.S. Normandie cabin telephone
S.S. Normandie cabin telephone
1934
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Long Distance Rate Reductions
AT&T / Bell System ad
1937
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Early Prototype Uniphone Wall Phone
Early Prototype Uniphone Wall Phone
1935
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Homer Dudley
Homer Dudley
Speech synthesis inventor
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AT&T Annual Report, 1939
AT&T Annual Report, 1939
1939
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Telephone Buildings Of The Bell System
Telephone Buildings Of The Bell System
1930
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Telephone vs. Airplane
Chesapeake & Potomac Telephone ad
1930
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AE Type 34 Wall Monophone
AE Type 34 Wall Monophone
1934
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Ericsson DBH 1001
Ericsson DBH 1001
1931
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Stromberg-Carlson 1212
Stromberg-Carlson 1212
1930
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AE 50 "Jukebox"
AE 50 "Jukebox"
1937
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AE 34
AE 34
1934
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AE40 With Gold Leaf And Butler Handle
AE40 With Gold Leaf And Butler Handle
1939
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Red AE40 With Gold Trim
Red AE40 With Gold Trim
1939
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Ericsson 1935 catalog (German)
Ericsson 1935 catalog (German)
1935
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1930 Bell Ten Line Intercom
1930 Bell Ten Line Intercom
1930
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WE 653 Hotel Phone
WE 653 Hotel Phone
1930
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American Electric 1931 catalog
American Electric 1931 catalog
1931
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Lloyd Espenschied
Lloyd Espenschied
Coaxial cable co-inventor
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Conference calling service
AT&T / Bell System ad
1936
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Anti-sidetone circuit developed
Anti-sidetone circuit developed
1930
AE 34 color brochure
Automatic Electric ad
1934
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George Stibitz
George Stibitz
Relay-based computer circuitry pioneer
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AT&T Annual Report, 1931
AT&T Annual Report, 1931
1931
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Buy a phone call
AT&T / Bell System ad
1935
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Red model 302
Red model 302
1937
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AT&T Annual Report, 1934
AT&T Annual Report, 1934
1934
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He is calling you
AT&T / Bell System ad
1932
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Ericsson 1937 switchboard catalog
Ericsson 1937 switchboard catalog
1937
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Ericsson 1935 Mine Telephones catalog
Ericsson 1935 Mine Telephones catalog
1935
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Ericsson 1935 catalog (French)
Ericsson 1935 catalog (French)
1935
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Clinton Davisson
Clinton Davisson
Bell Labs Nobel prize winner
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AT&T Annual Report, 1930
AT&T Annual Report, 1930
1930
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BTMC model 2725 ('Antwerp') phone
BTMC model 2725 ('Antwerp') phone
1936
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Kellogg 925
Kellogg 925
1930
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The Story of Western Electric
The Story of Western Electric
1938
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Otto Julius Zobel
Otto Julius Zobel
Filter design and theory pioneer
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Pope Pius XI's golden phone
Pope Pius XI's golden phone
1930
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The Crossbar System Bell Labs
The Crossbar System Bell Labs
1939
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WE 202
WE 202
1930
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Woman using pay phone 1930s
Woman using pay phone 1930s
1934
Burled Walnut Uniphone
Burled Walnut Uniphone
1935
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Simplex Fernsprecher brochure
Simplex Fernsprecher brochure
1936
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WE E5 208 Key Set
WE E5 208 Key Set
1930
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AT&T Annual Report, 1938
AT&T Annual Report, 1938
1938
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Black Model 302
Black Model 302
1937
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The Bell System
The Bell System
1933
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WE 1935 catalog
WE 1935 catalog
1935
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NE 1933 catalog
NE 1933 catalog
1933
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Sosthenes Behn
Sosthenes Behn
ITT founder
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WE 354
WE 354
1937
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From The Far Corners of the Earth
From The Far Corners of the Earth
1939
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Ericsson 1935 catalog (Spanish)
Ericsson 1935 catalog (Spanish)
1935
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Stromberg-Carlson 1211
Stromberg-Carlson 1211
1930
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Nazi yacht phone
Nazi yacht phone
1935
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Green AE40 With Gold Trim
Green AE40 With Gold Trim
1939
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Kellogg 1932 Catalog
Kellogg 1932 Catalog
1932
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The Birth and Babyhood Of the Telephone, By Thomas Watson
The Birth and Babyhood Of the Telephone, By Thomas Watson
1937
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Sallie Pero Mead
Sallie Pero Mead
Mathematician and wireless innovator
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AE 1939 Private Telephone Systems catalog
AE 1939 Private Telephone Systems catalog
1939
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Reproduction Clear AE 40
Reproduction Clear AE 40
1939
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Belgian Bakelite Table Telephone
Belgian Bakelite Table Telephone
1931
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Ericsson 1931 catalog
Ericsson 1931 catalog
1931
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Australian PMG 300 Series Wall Phone
Australian PMG 300 Series Wall Phone
1939
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AT&T Annual Report, 1933
AT&T Annual Report, 1933
1933
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John Renshaw Carson
John Renshaw Carson
AT&T transmission engineering leader
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Alec Reeves
Alec Reeves
Pulse code modulation co-developer
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Ericsson 1939 catalog
Ericsson 1939 catalog
1939
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Special Sunday Rates
AT&T / Bell System ad
1936
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Sergei Alexander Schelkunoff
Sergei Alexander Schelkunoff
Waveguide propagation researcher
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Salvador Dali makes dial compact for Elsa Schiaparelli
Salvador Dali makes dial compact for Elsa Schiaparelli
1935
Operators at 1939 World's Fair
Operators at 1939 World's Fair
1939
Submarine cable
Western Electric ad
1930
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Kellogg 9917
Kellogg 9917
1930
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Modell Maingau brochure
Modell Maingau brochure
1935
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Ericsson 1930 catalog
Ericsson 1930 catalog
1930
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'The multiplication of you'
AT&T / Bell System ad
1933
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Map of Bell System Overseas Telephone Circuits
Map of Bell System Overseas Telephone Circuits
1933
George Clark Southworth
George Clark Southworth
Waveguide developer and radio engineer
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Paris long distance central office
Paris long distance central office
1936
GPO phone
General Post Office/BT ad
1934
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The Telephone In America
The Telephone In America
1936
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'Big in value'
AT&T / Bell System ad
1939
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“Defective” Clear 302 By Ray Kotke
“Defective” Clear 302 By Ray Kotke
1939
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Western Electric Hawthorne Works
Western Electric Hawthorne Works
1930
Green GPO 332
Green GPO 332
1937
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AT&T Annual Report, 1935
AT&T Annual Report, 1935
1935
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Night rates to Europe
AT&T / Bell System ad
1935
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Secraphone Secure Phone
Secraphone Secure Phone
1937
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Marion Cameron Gray
Marion Cameron Gray
Discovered the Gray graph
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WE 201 Spacesaver
WE 201 Spacesaver
1930
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AT&T World Radio Telephone Chart
AT&T World Radio Telephone Chart
1930
WE 202 Imperial
WE 202 Imperial
1930
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