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| Start / | Knowledge / | Separation Methods / |
| Accidentals | Differences | Errors | Fakes | Mistakes | Parallel Issues | Printers Waste | Quality |
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Knowledge / Separation Methods / Cuts / Errors |
Cut error: philatelic term for a cut deviation caused by error |
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Cut size error: philatelic term for a deviation from the intended cut size caused by error |
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