2002-12, Water-Control and Hydroelectricity Works on the Yellow River《黄河水利水电工程》
2002-12, Water-Control and Hydroelectricity Works on the Yellow River《黄河水利水电工程》 Stamp Title: Water-Control and Hydroelectricity Works on the Yellow River Scott No: 3204, 3205, 3206, 3207 Serial number: 2002-12 Values in set: 4 (4-1), Lijia Gorge Hydropower Station, 80 fen, 50*30 mm (4-2), Liujia Gorge Hydropower Station, 80 fen, 50*30 mm (4-3), Qingtong Gorge [...]