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| Start / | Knowledge / | Prints / |
| Accidentals | Changes | Differences | Errors | Fakes | Kinds | Mistakes | Parallel Issues | Printers Waste | Safety Measures | Quality |
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Knowledge / Prints / Print Substrates / Fakes |
Paper Fake: original postage stamp with faked paper |
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Genuine Paper: authentic paper with no additional forgery |
Removed Stains: original postage stamp with deceitful eliminated stains |
Removed Soiling: original postage stamp with deceitful eliminated soiling |
Repaired Tear: original postage stamp with deceitful reweaved damaged paper |
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Pressed Out Slight Creases: original postage stamp with deceitful pressed out (slight) creases |
Supplemented Damaged Paper: original postage stamp mit thin spot deceitful filled up |
New Backing: original postage stamp with a thin patch deceitful shaved down and glued on a new backing |
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Supplemented Postage Stamp Margins: original postage stamp with deceitful supplemented bogus margins on four sides |
Partly Supplemented Postage Stamp Margins: original postage stamp with deceitful supplemented bogus margins on one, two or three sides |
Supplemented Postage Stamp Corner: original postage stamp with deceitful supple- |
Fake Paper Colour: postage stamp on original paper with deceitful changed overprint colour |
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Toned Up Paper Colour: postage stamp on original paper with deceitful toned up light colour |
Toned Down Paper Colour: postage stamp on original paper with deceitful toned down strong colour |
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