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| Accidentals | Changes | Differences | Errors | Fakes | Kinds | Mistakes | Parallel Issues | Printers Waste |
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Knowledge / Prints / Third Overprints / Errors |
Third Overprint Error: philatelic term for a third overprint deviation caused by error |
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Inverted Thrid Overprint: postage stamp with caused by error inverted instead upright third overprint |
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