In 1978 Chinese postage stamps had a history of one hundred years, beginning with the initial release of the First Customs Dragon Issue, commonly known as〝Large Dragons〞, in 1878. To celebrate this significant occasion, a set of 〝Centennial of Chinese Postage Stamps Commemorative Issue〞 was released on February 21, and a souvenir sheet (144 × 102 mm.) was released on March 20, 1978.　　The stamps take as their main design three representative Chinese stamps issued in the early, middle, and recent periods, i. e. Large Dragons, Dr. Sun Yat-sen (New York Print), and President Chiang Kai-shek’s portrait stamps. Around the central design is a decorative pattern. As for the souvenir sheet, three stamps are arranged in a row.