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Patent Model for a Sheet-Feed Apparatus
From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.
About this work
This patent model demonstrates an invention for an apparatus for feeding sheets or blanks into an envelope-making machine; the invention was granted patent number 39872.
National Museum of American History’s own descriptionCredit linePatent Model for a Sheet-Feed Apparatus. ca 1863. Allen, Edwin. National Museum of American History. CC0.