These two lamps made at different times one in the Weert factory The other elsewhere etch shows 3 dots, both in Holland, No on this one is 13379F/479
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https://www.youtube.com/watch?v=MyyyAXy5jSM
These lamps found their way into those bathroom shaving lights etc. This style not found in UK but were found on the Continent.
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https://www.youtube.com/watch?v=yldNSVHu4AU