Stamp Title: Scientists of Ancient China (1st Set) Serial number: C33, C33m Values in set: 4 (4-1), Zhang Heng, 8…
Stamp Title: 5th Anniv. of Signing of Sino-soviet Treaty of Friendship, Alliance and Mutual Assistance Serial number: C32 Values in…
50th Anniv. of Red Cross Society of China Serial number: C31 Values in set: 1 Date of issue: June 25,…
Stamp Title: Constitution of PRC Serial number: C30 Values in set: 2 (2-1), Constitution of PRC, 4 fen, 45*30 mm…
Stamp Title: 1st National People's Congress of PRC Serial number: C29 Values in set: 2 (2-1), General election, 4 fen,…