The depth, the dark, and the dangers inherent in mining created a uniquely dangerous working environment for the miner. Miners faced death from collapsing mines, oxygen deprivation, and haulage ...

Miners wearing safety hats and Edison lamps preparing to enter mine. Harwick, PA, 1953. Prior to the 1920s, miners wore a soft cap made of cloth or canvas with a leather brim and lamp bracket to hold ...