Got ideas for improving Telephone Archive? Let me know.

Phones People Timeline Videos PDFs Images Cards Signs Glossary Play About

1870s 1880s 1890s 1900s 1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s

Telephone Archive

Phones|People|Timeline|Videos|PDFs|Images|Cards|Signs| Glossary Play About

Iskra ETA 80

1979

Telstar Phone

1978

GPO Deltaphone

1979

General Post Office/BT · Source/via: Science Museum Group (website)

GPO Deltaphone

About This Phone

The Deltaphone was a later Trimphone variant.

Related PDFs

Talking Points

The Story of the Telephone

The Story of the Telephone

GPO Green Pages

GPO Green Pages

Telephone Companion

Telephone Companion

Telephones for Businesses

Telephones for Businesses

Telex With Teleprinter

Telex With Teleprinter

× ‹ ›

Got suggestions for improving Telephone Archive? Let me know.

© 2026 Telephonearchive.com