perforation gauge

noun

, Philately.

1. a marked ruler used to measure the number of perforations per unit length along the borders of a stamp.

perforation gauge

noun

1. a graduated scale for measuring perforations and roulettes of postage stamps

Word History and Origins

Origin of perforation gauge¹

First recorded in 1890–95

Example Sentences

Perforation Gauge.—An instrument for measuring the perforations of a stamp.

From Project Gutenberg