Perforation

Perforation means lines of punching holes made in any material. It is used in making paper objects like stamps or tickets, and along the edges of movies.

A typically perforated stamp in an Azerbaijani miniature sheet

In philately, there are three types of the cutting of postage stamps for stamp separation, including:

  1. Perforation, or cutting rows and columns of small holes.
  2. Rouletting, or small horizontal and vertical cuts.
  3. Diecutting, or cutting paper to shape using a metal die (used for self-adhesive stamps).

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  • The dictionary definition of perforation at Wiktionary
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