Hearn?s Lamps, 19th century. [Getty Images]

Hearn's Glass Candle Lamps, Hearn, Wright & Co., London, c.1895. (Photo by History of Advertising Trust/Heritage Images/Getty Images) — see more

Hearn's Glass Candle Lamps, Hearn, Wright & Co., London, c.1895. (Photo by History of Advertising Trust/Heritage Images/Getty Images)

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