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| Start / | Knowledge / | Prints / |
| Accidentals | Changes | Differences | Errors | Fakes | Kinds | Mistakes | Parallel Issues | Printers Waste |
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Knowledge / Prints / Burelages / Changes |
Burelage Changes: the same postage stamps issued chronologic with different burelages |
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Burelage Introduction: the same postage stamps issued chronologic without and than with burelage |
Burelage Omission: the same postage stamps issued chronologic with and than without burelage |
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Edition 1851: coloured paper without burelage |
Edition 06.1922: with burelage |
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