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| Accidentals | Changes | Designs | Errors | Fakes | Issue Occasions | Kinds | Mistakes | Parallel Issues | Printers Waste | Quality | Safety Measures |
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Knowledge / Punchings / Safety Measures |
Punching safety measure: safety measure that was carried out as a punching |
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Company punching: postage stamp that was punched by a company to make embezzlement more difficult |
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