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Patent Model of a Machine for Casting Printers' Leads
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 a casting printers’ lead; it was granted patent number 155609. Molten lead was rolled out to thickness between two flexible steel belts, then cut into strips, trimmed, and planed smooth.
National Museum of American History’s own descriptionCredit linePatent Model of a Machine for Casting Printers' Leads. ca 1874. Goodale, John. National Museum of American History. CC0.
