Bulgaria 1965 Conference of workers in land and water transport

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Bulgaria Unification of Bulgaria 1965

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Bulgaria 1965 assembly of folk art overprint

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Bulgaria 1965 Telecommunications Union

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Bulgaria 1965 International Ballet Competition Varna

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Bulgaria 1965 Year of International Cooperation

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Bulgaria 1967 Congress of the SBF

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Bulgaria 1966 The standard-bearer of the Boteva detachment Nikola Simov

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Bulgaria 1966 regular tourist sites

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Bulgaria 1966 Cultural figures

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Bulgaria 1968 80. Zoo in Sofia

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Bulgaria 1968 Flowers

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Bulgaria 1967 100 years since the death of Georgi S. Rakovski

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Bulgaria 1967 Paintings NHG Rachenitsa Mrkvichka

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Bulgaria 1965 Pioneer organization September

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Bulgaria 1966 VI congress of trade unions

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Bulgaria 1966 III Congress of the BSFS

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Bulgaria 1966 World Health Organization WHO

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Bulgaria 1965 Air transport

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Bulgaria 1966 spring

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Bulgaria 1966 New Year 1967

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Bulgaria 1966 ship Radetsky

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Bulgaria 1966 20 years UNESCO

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Bulgaria 1966 CHILDREN'S SERIES

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Bulgaria 1966 5 years of space flights

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Bulgaria 1966 children's series

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Bulgaria 1967 Pictures from NHG

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Bulgaria 1969 International Labor Organization

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Bulgaria 1966 IX Congress of the BKP

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Bulgaria 1966 1050 years since the death of St. Kliment Ohridski

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Bulgaria 1968 Tales

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Bulgaria 1968 100 years since the birth of Maxim Gorky

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Bulgaria 1968 150 years since the birth of Karl Marx

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Bulgaria 1968 Rila Monastery X century

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Bulgaria 1968 Herbs

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Bulgaria 1968 Bubarstvo

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30 years of Soviet space exploration Block unperforated 1987

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30 Years of Soviet Space Research Block Perforated 1987

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Bulgaria space research Block 1990

~1⁵⁴ €

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Bulgaria Security Council 1975

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Bulgaria BLOCK Winter Olympic Games Calgary '88

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Bulgaria Postage Fair Autumn '90

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Bulgaria 9 May 40 years since the 1985 victory

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Bulgaria 9 May 40 years since the 1985 victory

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Bulgaria 1945 Slavic Council imperforate caret

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Bulgaria 1973 IBRA ’73 - green overprint

~18⁴⁸ €

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Bulgaria 1987 Sport Artistic gymnastics

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Bulgaria 1985 115 V. I. Lenin

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Bulgaria 1985 Balkanfila'85 - Vratsa

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World Philatelic Exhibition Bulgaria '89 air mail

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Bulgaria 1969 Manasseh Chronicle XIV century - I and II part

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Bulgaria 1968 Hadji Dimitar and Stefan Karadzha

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Bulgaria 1968 Chiprov uprising

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Bulgaria 1968 International Year of Human Rights

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Bulgaria 1968 festival of youth and students

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Bulgaria 1968 Cooperation with the Scandinavian countries

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Bulgaria 1966 Regular - Monuments of culture

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Bulgaria Anti-fascist fighters 1966

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Bulgaria 1987 XV Winter Olympic Games Calgary '88

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Bulgaria 1985 800 years since liberation from Byzantium

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