From the Lens shape it looks like an early 5C/1069 “Half-twist to remove lens” Warning lamp.
This lamp has a bakelite body and screw-on ferrule; and is fitted with a stepped metal lens cap. (See Below.)
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No idea what dimming screen it used; but it is not the one fitted on the slightly later 5C/1069, which was the same pattern as the 5C/1635 series Warning lamps. The dimming screen fitted to these later lamps was a 5C/2080.