The 2nd National Conference of Chinese Scientific and Technical Association 1980
Now showing: China, Peoples Rep. - Postage stamps - 1980 - The 2nd National Conference of Chinese Scientific and Technical Association - 1 stamps.
1980
The 2nd National Conference of Chinese Scientific and Technical Association
12. March WM: None Sheetsize: 40 Perforation: 11½
![[The 2nd National Conference of Chinese Scientific and Technical Association, type BJZ]](https://www.stampworld.com/media/catalogue/China,-Peoples-Rep./Postage-stamps/BJZ-s.jpg)
