Stamp Title: 25th World table Tennis Championships Scott No: 423-424 Serial number: C66 Values in set: 2 (2-1), 25th World…
Stamp Title: Sino-Czechoslovak Technical Cooperation in Posts and Telecommunications Scott No: 422 Serial number: C65 Values in set: 1 (1-1),…
Stamp Title: World Peace Movement Scott No: 420-421 Serial number: C63 Values in set: 2 (2-1), Joliot Curie, 8 fen,…
Stamp Title: 40th Anniv. of May 4th Movement Scott No: 418-419 Serial number: C62 Values in set: 2 (2-1), Learning…
Stamp Title: International Labour Day 1889-1959 Scott No: 413-415 Serial number: C61 Values in set: 3 (3-1), Learning Marxism &…