Perforation varieties can make the difference
![STAMP PERFORATION GAUGE BY UNITRADE "PERFECTA GAUGE" **WE SUPPORT OUR VETS*** | eBay](https://i.ebayimg.com/images/g/M-cAAOSwrhNclRli/s-l1200.webp "STAMP PERFORATION GAUGE BY UNITRADE "PERFECTA GAUGE" **WE SUPPORT OUR VETS*** | eBay")
STAMP PERFORATION GAUGE BY UNITRADE "PERFECTA GAUGE" **WE SUPPORT OUR VETS*** | eBay
Two computer programs that can measure stamp perforations
Tearing stamps apart
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Postal stamp template. Blank postal stamp with perforation holes. Vector Illustration Stock Vector | Adobe Stock
Perfecta Gauge Stamp Metal Perforation Perf Gauge Unitrade Uni-Safe | eBay
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Laminated Card Stamp Perforation Gauge Guide - Double Sided Brand New FREEPOST | eBay
US stamps - Identify perforations
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Tearing stamps apart: How to measure perforations
