Patent model for autographic printing

Patent model for autographic printing

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Description (Brief)
This patent model demonstrates an invention for a method of making printed copies from handwriting on paper. Sulphate of iron was added to ordinary writing ink. The completed writing was pressed onto a plate coated with sensitized gelatine, which received the image in a form that could be printed like a lithograph. The invention was granted patent number 223873. The patent model consists of a coated plate with an image. Both coating and image have deteriorated badly.
Currently not on view
Object Name
process, autographic printing
Object Type
Patent Model
date made
ca 1880
patent date
Bardwell, John Jex
Physical Description
metal (overall material)
overall: 1 cm x 16.3 cm x 27 cm; 3/8 in x 6 7/16 in x 10 5/8 in
ID Number
accession number
patent number
catalog number
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Work and Industry: Graphic Arts
Industry & Manufacturing
Patent Models
Patent Models, Graphic Arts
Data Source
National Museum of American History
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