Engraving of Newcomen engine. This appears to be copied from a drawing in Desaguliers' 1744 work: A course of experimental philosophy, itself believed to have been a reversed copy of Henry Beighton's engraving dated 1717 representing what is probably the second Newcomen engine erected around 1714 at Griff colliery, Warwickshire. (See Hulse p.84)

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Engraving of Newcomen engine. This appears to be copied from a drawing in Desaguliers' 1744 work: A course of experimental philosophy, itself believed to have been a reversed copy of Henry Beighton's engraving dated 1717 representing what is probably the second Newcomen engine erected around 1714 at Griff colliery, Warwickshire. (See Hulse p.84)