Vintage plan view of Longwall System.

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Size: 3287px × 2302px
Photo credit: © Michelle Bridges / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: 1900s, airway, caved, coal, conveyor, ephemera, face, gate, history, intake, loading, long, longwall, manufacturing, mined, mining, paper, plan, point, return, roof, seam, single, slice, social, system, trunk, underground, unit, vintage, wall