Stamps of China, PRC, 13 May 2006
1 to 4 of 4
postage
2006, May 13 scientists (2006) unwmk (no perf info)
| - | 80f | multi | Liang Xi | |||
| - | 80f | multi | Mao Yisheng | |||
| - | 80f | multi | Yan Jici | |||
| - | 80f | multi | Zhou Peiyuan |
1 to 4 of 4
| - | 80f | multi | Liang Xi | |||
| - | 80f | multi | Mao Yisheng | |||
| - | 80f | multi | Yan Jici | |||
| - | 80f | multi | Zhou Peiyuan |