1936
1938
1937: AE 50 "Jukebox"
1937: Black Model 302
1937: Green GPO 332
1937: Red 332
1937: Red AE50 Jukebox
1937: Secraphone Secure Phone
1937: WE 354
1937: AT&T Annual Report, 1937
1937: Long Distance Rate Reductions
1937: Jean Arthur in Easy Living
1937: Secraphone Encrypted Phone
1937: Building and Maintaining Rural Telphone Lines
1937: Ericsson 1937 switchboard catalog
1937: The Birth and Babyhood Of the Telephone, By Thomas Watson