Interesting small neon indicators maybe for incorporating in switches etc to indicate when ON. These would require a high value resistor wired in series, note that famous trade mark the rounded M showing good quality. ... https://www.youtube.com/watch?v=m7Ujss5z-9I
Here we have another lamp from WW2 by Mazda BTH made at their Rugby plant AP 16195 never been lit and with large bi pin base.
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https://www.youtube.com/watch?v=XTed5SjreL4
Here we have the 'Horseshoe' phone by Siemens Brothers who called it Centenary Neophone and brought out in 1957. It was used on non GPO lines as they were working on the 700 type but Hull did use this along with private installations, this phone also exported to many countries. This was often seen on British films being so distinct.
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https://www.youtube.com/watch?v=W9nFbHeI1Mk
Further look into the Type 7P telephone from Portugal made by Plessey and supplied also to Malta. (706 clone ).
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https://www.youtube.com/watch?v=U-pFTWnNb1Y
Two nice sets of these lights in fully working condition, they are 120v so if used here a transformer is needed.
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https://www.youtube.com/watch?v=RA4rRArm43E
Israel's answer to our Tremolo phone this one on pulse and tone dialling, the Harmony phone from Canada will be featured soon.
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https://www.youtube.com/watch?v=mIV8cqtJOe8
These were made to reduce heat from the beam by causing the excess heat to leave the lamp at the base end virtually through the reflector, dichroic reflector as it is called. 120w 230v E27 base.
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https://www.youtube.com/watch?v=4LIZn9-NhkQ