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| Start / | Knowledge / | Prints / |
| Accidentals | Changes | Differences | Errors | Fakes | Issue Occasions | Kinds | Mistakes | Parallel Issues | Printers Waste | Quality |
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Knowledge / Prints / Postage Stamp Third Overprints / Issue Occasions |
Postage stamp third overprint issue occasion: summary of the different postage stamp third overprint occasion reasons |
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Occupation postage stamp third over-print: postage stamp third overprinted after a military occupation |
Face value postage stamp third over-print: postage stamp third overprinted with a new face value |
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