Category:Perforation gauge
a philatelic tool used to measure perforations  | |||||
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Media in category "Perforation gauge"
The following 6 files are in this category, out of 6 total.
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De-Odontometer.ogg 2.1 s; 21 KB
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De-Zähnungsschlüssel.ogg 2.1 s; 21 KB
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Odontometer.jpg 507 × 995; 816 KB
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Perfometer.jpg 1,644 × 1,962; 456 KB
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Perfotronic.jpg 2,328 × 1,548; 459 KB
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Zähnungsschlüssel.jpg 459 × 1,128; 68 KB
