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Patent Model for a Postmarking and Cancelling Machine
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 postmarking and postmark-cancelling; it was granted patent number 219587. The patent details the feeding mechanism for a postmarking machine.
National Museum of American History’s own descriptionCredit linePatent Model for a Postmarking and Cancelling Machine. ca 1879. Leavitt, Thomas. National Museum of American History. CC0.