| 31. | Meanwhile, in 1882 the Universal Postal Union standardized on particular colors of stamps for international mail.
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| 32. | In 1994, South Africa was readmitted to the Universal Postal Union following the end of apartheid.
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| 33. | The Universal Postal Union adopted comprehensive rules for airmail at its 1929 Postal Union Congress in London.
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| 34. | Davis said British ministers had not made representations to the Universal Postal Union about the Argentinian stamps.
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| 35. | Upon joining the Universal Postal Union on 1 July 1875, Ottoman overseas rates conformed to UPU rules.
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| 36. | Most countries protect some areas, especially letter delivery, said Thomas Leavey, director of the Universal Postal Union.
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| 37. | Spain joined the Universal Postal Union in 1875, which was announced in the Philippines two years later.
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| 38. | Russian Post is a founding member of the Universal Postal Union ( UPU ) created in 1874.
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| 39. | .post-Universal Postal Union, a United Nations agency.
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| 40. | The Philippines eventually joined the Universal Postal Union, this time as a sovereign entity, on January 1, 1922.
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