Issue: Scientific and technological achievements (China, People's Republic, 1999)

Monday, November 1, 1999, Scientific and technological achievements

Monday, November 1, 1999 China, People's Republic will issue: Stamp "Camrian era fossil" face value 80, Stamp "Underwater robot" face value 80, Stamp "Goldbackh conjecture" face value 80, Stamp "2,16 Mm Telescope" face value 80,