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Letter from Samuel Evans about perpetual motion
Letter from Samuel Evans about perpetual motion
Letter from John Lewis Tesch about his machine of perpetual motion
Letter from John Lewis Tesch about his machine of perpetual motion
Letter from James Hill about his discovery of perpetual motion
Letter from James Hill about his discovery of perpetual motion
Letter from S.B.E. about perpetual motion
Letter from S.B.E. about perpetual motion
Letter from Richard Swetnam on his perpetual motion machine
Letter from Richard Swetnam on his perpetual motion machine
Letter from Benjamin Smart about his perpetual motion machine
Letter from Benjamin Smart about his perpetual motion machine
Letter from John Ashfold about his discovery of perpetual motion
Letter from John Ashfold about his discovery of perpetual motion
Letter from T Glascow about perpetual motion
Letter from T Glascow about perpetual motion
Letter from J N Morgan about perpetual motion machine
Letter from J N Morgan about perpetual motion machine
Letter from Robert Dawson to Sir Joseph Banks about his improved plough and his mastery of perpetual motion
Letter from Robert Dawson to Sir Joseph Banks about his improved plough and his mastery of perpetual motion
Letter from Joseph Driver about perpetual motion,with a note of the Society's decision
Letter from Joseph Driver about perpetual motion,with a note of the Society's decision
Letter from William Herbert about a perpetual motion machine
Letter from William Herbert about a perpetual motion machine
Letter in French signed 'un gros suisse' about perpetual motion
Letter in French signed 'un gros suisse' about perpetual motion
Letter from G H Bates about premium for perpetual motion
Letter from G H Bates about premium for perpetual motion
Letter from Thomas Edwards about perpetual motion
Letter from Thomas Edwards about perpetual motion
Letter from William Billingsley about perpetual motion machine
Letter from William Billingsley about perpetual motion machine
Letter from J N Morgan about perpetual motion machine with drawings
Letter from J N Morgan about perpetual motion machine with drawings
Letter from Joseph Smith about his machine of perpetual motion
Letter from Joseph Smith about his machine of perpetual motion
Letter from Lt James Laurie about perpetual motion
Letter from Lt James Laurie about perpetual motion
Letter from N W Kool about perpetual motion machine
Letter from N W Kool about perpetual motion machine