Stamp exhibition time: June 13-22, 1980
Stamp Exhibition Location: Oslo, Norway
The stamp exhibition was held on the Norwegian Trading Floor in Oslo, with more than 120 countries and regions participating, exhibiting 3854 boxes of exhibits of various levels. The stamp exhibition lasts for ten days and there is a themed event every day. The number of visitors reached more than 50,000.
China was invited to participate in the stamp exhibition. China Stamp Corporation engraved a stamp of the stamp exhibition, with the T50 kite stamp on the first day of the stamp stamp a full set of stamps stamped stamp instead of the commemorative cover, sold at the exhibition.

Here are some of the other stamp products for the show:
T50 Kite Stamps stamp the first day of the stamp stamp with the stamp exhibition commemorative stamp
T50 Kite Stamp First Day Cover A single stamp is stamped directly with the stamp of the stamp exhibition
T49 Postal Transport Stamps are stamped directly with stamps stamped directly on the stamp on the first day of the stamp
Homemade envelope stamped with stamps from the stamp of the stamp
J16 The 30th anniversary of the establishment of the Inner Mongolia Autonomous Region
J35 Commemorates the 90th anniversary of International Workers' Day
J37 Commemorating the 60th Anniversary of the May Fourth Movement
J61 Stamps The 2050 anniversary of the founding of the Dacian State
T51 Fairy Tale - "Gollum"
T33 Changsha Chu Tomb Painting (the cover also has a sticker sticker issued by Norway)
The Norwegian commemorative cover is stamped with a stamp on the middle ticket
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