Switched lampholder, with insulated turn-button
This image is released under a CC BY-NC-SA 4.0 Licence
This image is released under a CC BY-NC-SA 4.0 Licence
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Science Museum Group
© The Board of Trustees of the Science Musuem
SMG00223977
Science Museum Group
© The Board of Trustees of the Science Museum
Switched lampholder, with insulated turn-button
