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25th Anniversary of the UNESCO International Oceanographic Commission issue of Bulgaria
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Short desc: 25th Anniversary of the UNESCO International Oceanographic Commission
Issuer: Bulgaria Date: 3/1/1985 Occasion: UNESCO International Oceanographic Commission founding Number/Year: 25 Consists of 1 stamp: (See stamps as list) 80st d=Research Vessel Akademik All are perf=13 Record of changes |
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