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1981-07-16 | 90th Anniv of First Bulgarian Social Democratic Party Congress, Buzludzha |
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copies 1 500 000 |
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copies 100 000 |
* LC# - Каталог на СП "Българска филателия и нумизматика" Mi# - MICHEL Briefmarken Kataloge Sc# - Scott Postage Stamp Catalog
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Complete set (2) | | |
0.14 € buy all set MNH |
n.a. used |
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