Stamp Title: Children Serial number: S18 Values in set: 4 (4-1), Baby, 8 fen, 20*30 mm (4-2), Watering, 8 fen,…
Stamp Title: Nationla Congress of Chinese Trade Union Scott No: 347-348 Serial number: C48 Values in set: 2 (2-1), Gears…
Stamp Title: 140th Birthday of Karl Marx Serial number: C46 Values in set: 2 Date of issue: May 5, 1958…
Stamp Title: Early Fossils of China Serial number: S22 Values in set: 3 (3-1), Trilobite of Haoli Mountain (Paleozoic), 4…
Stamp Title: Harnessing the Yellow River Serial number: S19 Values in set: 4 (4-1), Sketch map, 4 fen, 44*22 mm…