| 21. | The first souvenir sheet was issued for Universal Postal Union Day on 9 October 1971.
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| 22. | Palestine joined the Universal Postal Union in October 1923.
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| 23. | The 5-cent met the Universal Postal Union international rate.
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| 24. | In 1950, Wallish designed a stamp to celebrate Israel's acceptance into the Universal Postal Union.
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| 25. | The 5-cent paid the Universal Postal Union international rate.
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| 26. | Pota Rom�n is a founding member of the Universal Postal Union since its foundation in 1874.
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| 27. | "There's a spirit of cooperation between nations, fostered by the Universal Postal Union, " he said.
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| 28. | Afghanistan joined the Universal Postal Union in 1928; previously international mail required stamps of British India.
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| 29. | The Hungarian Post was one of the founding members of the Universal Postal Union in 1874.
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| 30. | The Philippines eventually joined the Universal Postal Union as a sovereign entity, on January 1, 1922.
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