Light Straw ATE

Enter the world of operator connected calls, Subscriber Trunk Dialling, Strowger switching and much more...

Visit the Post Office Tower; the Telephone Managers' Office; explore the Telecoms Engineering Centre; and learn about the last two TXE4s to be taken out of service.

Includes GPO Clock Systems.

GPO Clock Systems...


Simon Taylor collates all of the available documentation and surviving diagrams.

GPO History

Here we look at the GPO, Royal Mail, Post Office Savings Bank, ERNIE, National Giro and more...

Includes GPO vehicle history.

Telecoms at Bletchley Park

The GPO's expertise from its research department at Dollis Hill was invaluable in assisting Bletchley Park to develop robust, electro-mechanical machines which could be used to break the wartime codes.

Some parts for Tunny and Colossus machines were sourced from regular telephone exchange equipment.

Styling the Post Office

Read about the history of the Post Office's corporate branding as it evolved through from the General Post Office (GPO) to Royal Mail, British Telecom, BT, and Openreach.

See all book titles to purchase at the linked MyGPOFamily site.