Patent model for printers quoins. This patent model demonstrates an invention for slim quoins consisting of two metal plates with slanting faces that worked on each other; used when there was not enough space in the form for ordinary quoins. The invention was granted patent number 483185.

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Size: 1938px × 1289px
Photo credit: © SBS Eclectic Images / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: arts, culture, graphic, printing