ASTANA. KAZINFORM - The cancellation ceremony of the postage stamped dedicated to the 30th anniversary of Kazakhstan's accession to the United Nations Educational, Scientific and Cultural Organization (UNESCO) took place at the Ministry of Foreign Affairs of the Republic of Kazakhstan. Representatives of the UNESCO Cluster office and the UN agencies, Kazpost JSC as well as employees of the Ministry of Foreign Affairs of the Republic of Kazakhstan participated in the event, Kazinform cites the press service of the Kazakh Foreign Ministry.