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Patent Model of a Type Mold
CC0 · no rights reserved

Patent Model of a Type Mold

Mitchell, Thomas · ca 1891 · metal (overall material)

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 type mold which was granted patent number 450083. The patent details a mold for casting type with letters on both ends, or "duplex-lettered type." Such type was used in printing for the blind, though no particular application is specified for this patent.

National Museum of American History’s own description
Subjects
Patentsmanufacture, type moldModelsType, MoldType FoundingWork and Industry: Graphic Arts
Credit linePatent Model of a Type Mold. ca 1891. Mitchell, Thomas. National Museum of American History. CC0.
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