Model makers bulbs (Bearwood BH11)

I think they call them model makers bulbs . I bought them to go in Christmas model houses . I believe people that have model railway displays use them . I got them from Amazon and contacted the seller he said at that time they were getting difficult to find . Can anyone make use of them or know of someone that have models that light up . On the screw part it says 2 V 3 W .

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