| 21. | These two First Day Covers will be postmarked with the issue date of January 10, 1998.
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| 22. | First day covers are created when a new postage stamp is issued by the postal service.
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| 23. | These First Day Covers are very collectible.
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| 24. | Royal Selangor creates latest First Day Cover
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| 25. | The Hayes stamp is regarded by many collectors as the beginning of modern First Day Cover collecting.
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| 26. | The stamps, leaflets, and first day covers were destroyed, and no copies are known to have survived.
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| 27. | In 1977, he became the first African to design a First Day Cover for a United Nations stamp.
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| 28. | Collectors regard the First Day Covers of this stamp as the beginning of modern First Day Cover collecting.
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| 29. | Collectors regard the First Day Covers of this stamp as the beginning of modern First Day Cover collecting.
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| 30. | Despite not being postage stamps, these are marketed by New Zealand Post and first day covers are also produced.
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