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Open Cast gravel-pumping tin mine Malaya, Malaysia, south east Asia 1964 - slurry runs off into
UMG26A12_264

Open Cast gravel-pumping tin mine Malaya, Malaysia...

Waste spoil heaps polluted tailing ponds environmental impact of large scale tin mining, Batu
UMG26A12_270

Waste spoil heaps polluted tailing ponds environme...

Mr. A. Langerfeld and one of his machines for picking coal which does away completely with the use of breaker boys. 1913
UMG20A67_389

Mr. A. Langerfeld and one of his machines for pick...