A philatelist demonstrates "Internet Life", a special stamp set issued by China Post to mark the 20th anniversary of China's internet era, at a postal office in Suzhou, East China's Jiangsu province, April 20, 2014. China officially gained internet access on April 20, 1994. Within two decades, internet has played a vital part of the country's everyday life. The special stamp set contains four commemorative stamps with their respective themes -- "online communication" (upper L), "e-commerce" (upper R), "mobile connection" (lower L) and "cloud computing" (lower R). [Photo/Xinhua]

Collector opens coupon museum 

Postal museum showcases history