Engraving depicting Mangin and Leroyer's signalling lamp for mines. The incandescent bulb was immersed in a lantern of distilled water to minimise the chance of an explosion should the lamp break

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Size: 6721px × 3120px
Location:
Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 19th, archival, archive, bulb, century, distilled, electric, electricity, engraving, explosion, historic, historical, history, incandescent, lamp, lantern, leroyer, mangin, mining, signalling, water