Always Looking For Something Different

[Doug Rose]

Very cool phone and you got it for under $13?
Nice find.
What kind of system would it have connected to?

No idea what it would be hooked up to. I also received this Standard PTT Mulit line as well. It was a nice haul for  $13....Doug

[countryman]

No idea what it would be hooked up to.

The first one looks like a "line selector" type of intercom (not sure of correct terminolgy?). Each extension would be permanently wired to any other. There is no central office or exchange. The connection is made by pushing the respective button. Fully pushed= calling (with a DC buzzer), when released the button would lock in half-way and seize the line. Hanging up will fully release the button.
Simple operation, but a lot of wiring to be done. Hence limited to 10 or maybe 20 extensions.

[5415551212]

Interesting thanks fellas.

I would love to see one tied it into a interphone or key system.

[FABphones]

Additional 'Modern Telephone (Great Britain) Ltd' handset images: