Quoin (printing) explained

A quoin is a device used to lock printing type in a chase in letterpress printing.[1] Quoins are pairs of wedges, facing opposite directions. A wrench or quoin key forces them together.[2]

Notes and References

  1. Book: Haynes, Roscoe E.. American Printer and Lithographer. 18 June 2016. 1922. Moore Publishing Company. en. 143. This brings the quoins at the top and right end of the chase and opposite the guides to which the sheets are fed..
  2. Web site: Letterpress Commons . June 18, 2016.

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