Perforation gauge

Rarity: Common

The most frequent rarity: most Wikipedia articles become Commons.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

Class

Invention

Domain

Science and technology

Knowledge cost

1

In collections

Nobody has pulled it yet.

What Wikipedia says

In philatelic terminology, perforation gauge has two meanings:

Excerpt from the Wikipedia article “Perforation gauge”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Original uploader was User:Сдобников Андрей at ru.wikipedia, Public domain, via Wikimedia Commons.