This engraving was made by the renowed painter, engraver and antiquarian John Thomas Smith from his 1807 publication 'Antiquities of Westminster'. His drawing is the foundation plan of the ancient Palace of Westminster as it was in the 17th century. It shows the undercoft and cellars beneath Parliament where Fawkes was discovered by Sir Thomas Knyvet with the barrels of gunpowder hidden under piles of firewood and coal.
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