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Letter from CSE Richter in French, signed 'JNCJGAG' or 'JNCH Ingenieur-Geographe, Architecte et Graveur' about perpetual motion
Letter from CSE Richter in French, signed 'JNCJGAG' or 'JNCH Ingenieur-Geographe, Architecte et Graveur' about perpetual motion
Letter from Joseph Smith about his machine of perpetual motion
Letter from Joseph Smith about his machine of perpetual motion
Letter from J N Morgan about perpetual motion machine with drawings
Letter from J N Morgan about perpetual motion machine with drawings
Letter from Benjamin Smart about his perpetual motion machine
Letter from Benjamin Smart about his perpetual motion machine
Letter from Frederick Matthews about perpetual motion machine
Letter from Frederick Matthews about perpetual motion machine
Letter from Richard Swetnam on his perpetual motion machine
Letter from Richard Swetnam on his perpetual motion machine
Letter from Richard Swetnam on his perpetual motion machine
Letter from Richard Swetnam on his perpetual motion machine
Letter from Richard Swetnam on his perpetual motion machine
Letter from Richard Swetnam on his perpetual motion machine
Letter from J N Morgan about perpetual motion machine
Letter from J N Morgan about perpetual motion machine
Letter from William Herbert about a perpetual motion machine
Letter from William Herbert about a perpetual motion machine
Letter from James McCan about a plan for a perpetual motion
Letter from James McCan about a plan for a perpetual motion
Letter from John Justins about perpetual motion and reclaiming land from the sea
Letter from John Justins about perpetual motion and reclaiming land from the sea
Letter from J Atkinson about his method of securing perpetual motion
Letter from J Atkinson about his method of securing perpetual motion
Letter from Dr J C Lettsom about perpetual motion
Letter from Dr J C Lettsom about perpetual motion
Letter from S.B.E. about perpetual motion
Letter from S.B.E. about perpetual motion
Letter from John Justins about perpetual motion
Letter from John Justins about perpetual motion
Letter from John Justins about perpetual motion
Letter from John Justins about perpetual motion
Letter from N W Kool about perpetual motion machine
Letter from N W Kool about perpetual motion machine
Letter from Johann Ludwig in German about his discovery of perpetual motion
Letter from Johann Ludwig in German about his discovery of perpetual motion
Letter from James Hill about his discovery of perpetual motion
Letter from James Hill about his discovery of perpetual motion