J040, National Scientific and Technological Exhibition of Juniors' Works《全国青少年科技作品展览》 Stamp Title: National Scientific and Technological Exhibition of Juniors' Works Scott No: 1511 Serial number: J40 Values in set: 1 (1-1), The emblem, 8 fen, 26*31 mm Date of issue: October 3, 1979 Denomination: 8 fen Designer: Zou Jianjun Size of stamps: 26*31mm Perforation: [...]
T041, Study Science from Childhood《从小爱科学》 Stamp Title: Study Science from Childhood Serial number: T41, T41m Values in set: 6 (6-1), Aeromodelling, 8 fen, 26*31 mm (6-2), Iatrology, 8 fen, 26*31 mm (6-3), Astronomy, 8 fen, 26*31 mm (6-4), Biology, 8 fen, 26*31 mm (6-5), Aerography, 8 fen, 26*31 mm (6-6), Ship model, 60 [...]
J048, 30th anniv. of Founding of PRC (5th Set)《中华人民共和国成立三十周年（第五组）》 Stamp Title: 30th anniv. of Founding of PRC (5th Set) Serial number: J48 Values in set: 4 (4-1), The modernization of agriculture, 8 fen, 31*52 mm (4-2), The modernization of industry, 8 fen, 31*52 mm (4-3), The modernization of national defence, 8 fen, 31*52 [...]
Stamp Title：30th anniv. of Founding of PRC (4th Set) Serial number: J47 Values in set: 4 Date of issue: October 1, 1979 Denomination: 32 fen Designer: Lu Tianjiao Size of stamps: 31*38.5m Perforation: 11.5 Sheet composition: 50(10*5) Printing process: Photogravure Printing House: Beijing Postage Stamp Printing Works J47 中华人民共和国成立三十周年（第四组） 发行日期：1979.10.1，影写版，P11.5， 31*38.5mm， 50（10*5）。 卢天骄。印刷：北京邮票厂。 [...]
J046, 30th anniv. of Founding of PRC (3rd Set)《中华人民共和国成立三十周年（第三组）》 Stamp Title: 30th anniv. of Founding of PRC (3rd Set) Serial number: J46 Values in set: 1 Date of issue: October 1, 1979 Denomination: 8 fen Designer: Wan Weisheng Size of stamps: 40*54mm Perforation: 11 Sheet composition: 28(7*4) Printing process: Photogravure Printing House: Beijing [...]