National Museum of American History
Patent model for typecasting device for embossed or pointed type
Bryant, Isaac C. · ca 1860
This patent model demonstrates an invention for Bryant's hand mold with a double matrix, intended for the casting of "pointed type" as used by the blind. The invention was granted patent number 30293. The letters (not Braille signs) in the matrices were built up from the sharp ends of wires.
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