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Patent model for stretcher frames for canvases
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 methods of making cheap and strong stretcher frames; the invention was granted patent number 192319.
National Museum of American History’s own descriptionCredit linePatent model for stretcher frames for canvases. ca 1877. Witt, John H.. National Museum of American History. CC0.