An old photograph (circa 1940's) showing am American safety officer checking underground communication lines in a coal mine.

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Size: 4428px × 5906px
Photo credit: © Colin Waters / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1940s, air, carboniferous, cardiff, change, check, checking, climate, coal, coalfield, colliery, communication, fire, fires, fossil, fuel, fuels, geology, grade, grades, headstock, headstocks, industrial, industry, introduction, lamp, lines, miner, miners, mineworkers, mining, officer, open, photo, photograph, pit, pits, pollution, revolution, safety, stockpiles, stocks, tapping, telephone, train, trains, vehicle, wagons