A stamp from The Games of The XXIX Olympiad Competition Venues series is released in 2007 to mark the 2008 Beijing Olympics. An exhibition on postage stamps opened at Shougang Industry Services Park Thursday to mark the 50-day countdown to the Beijing Winter Olympics. Photo: VCG

A worker shows a set of two stamps illustrating table tennis and men’s weightlifting on July 23 in Xinle, North China’s Hebei province. Photo: IC Photo

A women displays a set of six stamps featuring Fuwa, the mascots of the Beijing 2008 Summer Olympics, in Aug. 2008 in Zhengzhou, Central China’s Henan province. Photo: VCG

A handout photo of a stamp depicting shot-put to mark Ireland's participation in the Beijing 2008 Olympic Games. Photo: VCG

The series by artist Graham Knuttel to mark Ireland's participation in the Beijing Olympics is composed of two stamps, including one depicting rowing. Photo: VCG

A stamp from the Beijing 2022 Winter Olympics – Ice Sports series issued in Nov. 2020 in China. Photo: China Post

The series containing five stamps featuring ice sports such as curling, figure skating, and ice hockey is designed by Zhang Qiang. Photo: China Post

The stamp featuring Freeski is from the Beijing 2020 Winter Olympics — Snow Sports series China issued in Nov. 2018. The series contains four commemorative stamps. Photo: IC Photo

The stamp illustrating the National Ski Jumping Centre is a part of a set of stamps called the Beijing 2022 Winter Olympics — Competition Venues issued on June 23. Photo: China Post

A Shougang Ski Jumping Platform stamp from the Beijing 2022 Winter Olympics — Competition Venues series designed by Guo Zhiyi and depicts five venues of the upcoming Olympic Games. Photo: China Post

The Olympics From Beijing to London series was issued by the State Post Bureau of China on Aug. 24, 2008, to mark the Beijing 2008 Summer Olympics. Photo: State Post Bureau of The People’s Republic of China

Enlarged versions of Royal Mail's Welcome to the London 2012 Olympics stamps were displayed at Potters Fields, London, in July 2012. Photo: VCG

This stamp features Peter Wilson, who helped the U.K. win the first gold medal during the London 2012 Olympics. Photo: IC Photo

The stamp from a series issued by Rwanda Post to mark the 1968 Summer Olympics in Mexico City, Mexico. Photo: IC Photo

Issued by Mongolia, this wrestling stamp comes from a series to commemorate the 1968 Summer Olympics. Photo: IC Photo

This cross-country skiing stamp is from the series dedicated to the 1964 Winter Olympics in Innsbruck, Austria. Photo: IC Photo

Illustrated by Italian painter Corrado Mancioli, this ski jump stamp is from a series created to display sports events of the 1956 Winter Olympics held in Cortina d'Ampezzo, Italy, from Jan. 26 to Feb. 5. Photo: IC Photo

Czechoslovakia issued this riding stamp in 1965 to commemorate the victory of František Ventura in the individual jumping at the IX Olympiad in 1928 in Amsterdam, the Netherlands. Photo: IC Photo

The stamp featuring the Discobolus of Myron belongs to a series of 12 stamps designed by Professor Emile Gillieron to mark the first modern Olympic Games held in 1896 in Athens, Greece. Photo: Courtesy of the British Library