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Mining Lights and Hats -- Helmets | National Museum of American History
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This is an example of what a carbide light looks like when it is attached to the Skullgard Helmet that was introduced into the ind… | Coal miners, Coal mining, Coal
Mining Lights and Hats | National Museum of American History
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Heroes, Heroines, and History: I'll Just Attach This Flame To My Canvas Hat – Evolution of Mining Hard Hats
Mining Lights and Hats -- Soft Caps | National Museum of American History
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Electric Lamps | Smithsonian Institution
Mining Lights and Hats -- Helmets | National Museum of American History
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Mining Lights and Hats | National Museum of American History
CultureNL Museums
Mining Lights and Hats | National Museum of American History
Miners Lamp History from Flame to 'the Davy Lamp' to Electric - HSI
