Sometimes a stamp will be die cut to the same separation as its perforated identical cousin, so a perf gauge does no good. How does one tell the difference? And what does "serpentine" mean?
You are correct rod, it is rouletting. Perforating, however, does not require paper to be removed. Perforation could also refer to a hole in the sense of 'penetration.' Philatelically, that is an extremely rare use.
Perforative 1. To pierce, punch, or bore a hole or holes in; penetrate. 2. To pierce or stamp with rows of holes, as those between postage stamps, to allow easy separation. Perce en serpentine.
Subject to confirmation, this rouletting is carried out by a thin piece of brass with a very sharp edge, called "the printer's perforative rule" In this case the printer's perforative rule, is in the shape of a wavy line.
Quote: Perforating, however, does not require paper to be removed. Perforation could also refer to a hole in the sense of 'penetration.' Philatelically, that is an extremely rare use.
"One of the other processes employed was PIN PERFORATION, or more correctly, ROULETTING.
Collecting Postage Stamps 1950 Oxcford University Press L N and M Williams Page 111
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Posted 10/14/2022 5:22 pm
