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Letter from Rev Pesler about his improved threshing machine, translation from German
Letter from Rev Pesler about his improved threshing machine, translation from German
Letter from James Blancher about using steel puncheons
Letter from James Blancher about using steel puncheons
Letter from Robert Dickinson addressed to J C Curwen with drawing and certificates about his cast iron plough
Letter from Robert Dickinson addressed to J C Curwen with drawing and certificates about his cast iron plough
Letter from Charles Dickinson about the need to ascertain the soundness of French bolts
Letter from Charles Dickinson about the need to ascertain the soundness of French bolts
Letter from William Staples about his watch escapement
Letter from William Staples about his watch escapement
Letter from Samuel Kenyon about Christopher Towill's lifeboat
Letter from Samuel Kenyon about Christopher Towill's lifeboat
Letter from Christopher Towill about his lifeboat
Letter from Christopher Towill about his lifeboat
Letter from Christopher Towill about his lifeboat
Letter from Christopher Towill about his lifeboat
Letter from Charles J Clarke on his new portable watch alarm
Letter from Charles J Clarke on his new portable watch alarm
Letter from George Montague Sears about his pharmaceutical balance
Letter from George Montague Sears about his pharmaceutical balance
Letter from Thomas Philips addressed to the Royal Society about his mincing machine
Letter from Thomas Philips addressed to the Royal Society about his mincing machine
Letter from John Prior about his repeating clock
Letter from John Prior about his repeating clock
Letter from Captain William Bolton about model for fitting jury masts
Letter from Captain William Bolton about model for fitting jury masts
Letter from Davies about his improved rudder for ships
Letter from Davies about his improved rudder for ships
Letter from John Dudgun and printed notice about Captain Brodie's water gage
Letter from John Dudgun and printed notice about Captain Brodie's water gage
Letter from James Boag about improved furnace
Letter from James Boag about improved furnace
Letter from Edward Jones about quadrant for measuring depths of rivers
Letter from Edward Jones about quadrant for measuring depths of rivers
Letter from James Day about his improved fire escape
Letter from James Day about his improved fire escape
Letter from Captain Henry Gordon about his improved drag to prevent accidents to carriages
Letter from Captain Henry Gordon about his improved drag to prevent accidents to carriages
Letter from Gamaliel Smethurst about a method of extinguishing fires
Letter from Gamaliel Smethurst about a method of extinguishing fires