Rail system telephones and related equipment on display
(Click on any picture for a full screen view)
A portable telephone that can be used for testing, or to clip onto the phone lines by the track to make a call.
A PABX (Private Branch Telephone Exchange), part of the extensive telephone system required to support the rail system.
A test unit for the PABX
Not a telephone, but a Teleprinter. These enabled messages to be sent over telephone lines. Prior to fax, then email these were the primary way of sending written instructions to distant locations.