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| Start / | Knowledge / | Prints / |
| Accidentals | Changes | Designs | Differences | Errors | Fakes | Issue Occasions | Kinds | Mistakes | Parallel Issues | Printers Waste | Quality |
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Knowledge / Prints / Margin Overprints / Fakes |
Fake margin overprint: genuine margin of sheet with deceitful bogus margin overprint or with faked postage stamp overprint |
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Genuine margin overprint: authentic margin overprint with no additional forgery |
Fake margin overprint: genuine margin of sheet with deceitful bogus margin overprint |
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