Aktiebolaget Monofon five-line intercom
American Electric desk phone
Chisholm & Dunn Telephone Appliances Ltd. Desk Set
Ericsson 'special protection' industrial phone
Ericsson metal phone with Victorian imagery
Ericsson phone made in Moscow
Hammered Copper Candlestick
High-current telephone for long distance calls
Military Portable Telephone
Parsons-Sloper Secret Service Intercom Telephone
Royal Swedish Telephone Switchboard
Siemens & Halske Model 4088 (Railroad)
First multiplexed telephone circuits
First multiplexed telephone circuits
PDF:
Andrae c1910 Catalog
PDF: Andrae c1910 Catalog
Photo: Delivering phone directories in 1910
Photo: Delivering phone directories in 1910
PDF:
AT&T Annual Report, 1910
PDF: AT&T Annual Report, 1910
Photo: Switchboard training, in Denver
Photo: Switchboard training, in Denver
PDF:
Ericsson 1910 catalog
PDF: Ericsson 1910 catalog