A commemorative postcard is displayed at a ceremony in Beirut, Lebanon, on Nov. 17, 2021. The Lebanese Numismatic and Philatelic Club on Wednesday launched a commemorative envelope, postcards and a gold medal to mark the 50th anniversary of the establishment of the diplomatic relations between China and Lebanon. (Photo: Xinhua)

Waref Kumayha, president of the Lebanese Numismatic and Philatelic Club, displays a commemorative gold medal at a ceremony in Beirut, Lebanon, on Nov. 17, 2021. The Lebanese Numismatic and Philatelic Club on Wednesday launched a commemorative envelope, postcards and a gold medal to mark the 50th anniversary of the establishment of the diplomatic relations between China and Lebanon. (Photo: Xinhua)