January 27, 2017
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January 27, 2017
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thdesford1
January 27, 2017
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desford
January 27, 2017
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thcalcutta
January 27, 2017
Calcutta – Cornish boilers
Five Cornish boilers made by Robert Stephenson & Co., 1877. George Watkins/National Monuments Collection. (Crown Copyright)
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January 27, 2017
Calcutta – Pumping Engine
Pumping Engine at Calcutta CollieryCopyright © NMRS Records: Geoff Hayes Collection
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January 26, 2017
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