Patent model for sidesticks and quoins. This patent model demonstrates an invention for a combination of quoins and sidesticks which was granted patent number 218518. The quoins swiveled on the ends of wide screws that turned into the sides of the metal sidesticks.

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

Keywords: arts, culture, graphic, printing