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| Start / | Knowledge / | Issue Kinds / |
| Accidentals | Differences | Errors | Fakes | Mistakes | Parallel Issues | Printers Waste | Quality |
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Knowledge / Issue Kinds / Single Manufacturing / Errors |
Single manufacturing error: philatelic term for a single manufacturing deviation caused by error |
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Single manufacturing size error: philatelic term for a deviation from the intended single manufacturing size caused by error |
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