This collection of stamps has been issued by China to commemorate the signing of the Sino-Soviet Treaty of Friendship and Alliance. The former Soviet Union was the first country that officially established diplomatic relations with China in 1949. The stamps show Chairman Mao Zedong shaking hands with the former Soviet Union leader Joseph Stalin. The background is Tian'anmen and the Kremlin. (Photo/China Plus)
This collection of stamps was issued by China to mark the fifth anniversary of the Sino-Soviet Treaty of Friendship and Alliance. One stamp shows Chairman Mao Zedong talking with the former Soviet Union leader Joseph Stalin. The other one shows two working engineers from China and the Soviet Union. (Photo/China Plus)
This collection of stamps was issued by the former Soviet Union in 1959 to mark the tenth anniversary of the establishment of the People's Republic of China. The stamps show students and workers from the two countries getting together. (Photo/China Plus)
The stamp of the Order of St. Andrew the Apostle was issued in 2011. It represents the highest national honor in Russia. In 2017, Russian president Vladimir Putin awarded the Order of St. Andrew the Apostle to Chinese president Xi Jinping. (Photo/China Plus)
In 1958, the former Soviet Union issued two stamps featuring well-known contemporary painter Qi Baishi and renowned ancient Chinese Yuan Opera composer Guan Hanqing respectively. In 1993, a panda stamp were issued in Russia. (Photo/China Plus)
This collection of stamps of red deer was jointly issued by the two countries in 1999 to mark the 50th anniversary of the establishment of diplomatic relations, the first joint issuance of its kind. (Photo/China Plus)
This collection of stamps was issued by Russia to mark the 2008 Beijing Summer Olympics. (Photo/China Plus)
This collection of stamps was issued by Russia to mark the 2014 Sochi Winter Olympics, a special Chinese version. (Photo/China Plus)
