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Patent Model of a Metallograph, or Embossing Pen for Autographic Printing

Patent Model of a Metallograph, or Embossing Pen for Autographic Printing

Description (Brief)
This patent model demonstrates an invention for a metallograph, and was granted patent number 215792. With this tool, a writer could turn a sheet of metal into a printing plate as he wrote on it. The air-powered writing instrument made a series of sharp blows to the metal, knocking out projections on the back of the sheet. The projections formed a facsimile of the writing in reverse and in relief for printing at a type press.
Currently not on view
Object Name
machine, metal embossing
Object Type
Patent Model
Date made
ca 1879
patent date
Setchell, George C.
Carey, Augustus C.
Carey, George R.
Physical Description
metal (overall material)
overall: 19.3 cm x 7 cm x 14 cm; 7 5/8 in x 2 3/4 in x 5 1/2 in
ID Number
catalog number
patent number
accession number
See more items in
Work and Industry: Graphic Arts
Industry & Manufacturing
Patent Models
Patent Models, Graphic Arts
Data Source
National Museum of American History
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