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Balance
From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.
About this work
The inscription on this small wooden patent model reads “JOHN W. HILL & O. G. H. DAVIDSON AUTOMATIC GRAIN WEIGHER.” Hill, a mechanical engineer in Dayton, Ohio, assigned half of his rights to this invention to a local mechanic named Christian Herchelrode.
National Museum of American History’s own descriptionCredit lineBalance. 1873. Hill, John W.. National Museum of American History. CC0.
