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Vintage mercury vapour discharge lamps with E40 GES screw caps. Old or retro lightbulbs. Retro. Steampunk, High pressure mercury, medium pressure Stock Photo - Alamy
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Vintage mercury vapour discharge lamps with E40 GES screw caps. Old or retro lightbulbs. Retro. Steampunk. High pressure mercury, medium pressure Stock Photo - Alamy
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Vintage mercury vapour discharge lamps with E40 GES screw caps. Old or retro lightbulbs. Retro. Steampunk, High pressure mercury, medium pressure Stock Photo - Alamy