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1971 International Telecommunication Day

1971 International Telecommunication Day

1971 EUROPA Stamps

1971 EUROPA Stamps

1971 Day of the Stamp

1971 Day of the Stamp

1971 The 50th Anniversary of the French Academy

1971 The 50th Anniversary of the French Academy

1971 Culture Edition

1971 Culture Edition

1971 Young Philatelists

1971 Young Philatelists

1971 The 800th Anniversary Tournai Cathedral

1971 The 800th Anniversary Tournai Cathedral

1971 The 75th Anniversary of the Touring-Club

1971 The 75th Anniversary of the Touring-Club

1971 Automobile Exhibition in Brussel

1971 Automobile Exhibition in Brussel

1971 Automation of the Telephone Net

1971 Automation of the Telephone Net