China's First Atomic Reactor and Cyclotron
Scott No: 392-393
Serial number: S28
Values in set: 2
Date of issue: December 30, 1958
Denomination: 28 fen
Designer: Sun Chuanzhe, Liu Shuoren, Wu Jiankun
Engraver: Sun Jingyong, Sun Hongnian
Size of stamps: 38*27.5mm
Perforation: 14
Sheet composition: 80(8*10)
Printing process: Engraving
Printing House: Beijing People's Printing Works
