- RSA/PR/GE/110/5/49
- Item
- 1756
Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)
Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)
Letter from an engineer about perpetual motion machine
Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)
Letter from Benjamin Smart about his perpetual motion machine
Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)
Letter from De Manger in French on perpetual motion
Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)
Letter from Dr J C Lettsom about perpetual motion
Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)
Letter from Francis Dubourdier about his method of obtaining perpetual motion
Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)
Letter from Frederick Matthews about perpetual motion machine
Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)
Letter from G H Bates about premium for perpetual motion
Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)
Letter from J Atkinson about his method of securing perpetual motion
Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)
Includes drawing
Letter from J N Morgan about perpetual motion machine
Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)
Includes drawing
Letter from J N Morgan about perpetual motion machine
Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)
Letter from J N Morgan about perpetual motion machine
Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)
Letter from J N Morgan about perpetual motion machine with drawings
Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)
Letter from J W Barnard about perpetual motion
Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)
Letter from James Hill about his discovery of perpetual motion
Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)
Letter from James McCan about a plan for a perpetual motion
Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)
Includes diagram
Letter from James Randoll about his perpetual motion machine
Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)
Letter from Johann Ludwig in German about his discovery of perpetual motion
Part of Royal Society for the encouragement of Arts, Manufactures and Commerce (RSA)