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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 / Fakes |
Fake cut: fake postage stamp with cut or genuine postage stamp with deceitful bogus cut |
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Genuine cut: postage stamp with authentic cut with no additional forgery |
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