Pittsburgh, Pennsylvania (vicinity). Montour no. 4 mine of the Pittsburgh Coal Company. Safety lamps in lamp house

Size: 3474px × 3270px
Location: US
Photo credit: © The Protected Art Archive / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: african, american, blacks, coal, colored, head, labor, lamps, lights, miners, negroes, pittsburgh, safety, union, workers