Example of the Vidi movement most often seen and more common then the Bourdon Type, which seem to be rare now
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https://www.youtube.com/watch?v=lx6sDp4QWKE
Not old or rare turned up at my local Junk Shop worker coloured glass no name or rating but 230v and 40 or 60 w I would think 1960s ?
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https://www.youtube.com/watch?v=lIGWeCpM6Z0
Telephones of the World Model 1806 (without regulator) by Pye of Cambridge in the 1960s based on the well proven 706 design of the GPO. Also check out how different these were and I show the phone with cover off and dial removed to get a better view. Enjoy!
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https://www.youtube.com/watch?v=gK8teXK98t8