China
0.7 - 0.84$
price on 03.03.2023
| Country: | China |
| Type: | Postage stamps |
| Series: | Modern Scientists |
| Nominal: | 20 分 |
| Year: | 1990 |
| Size: | 40 x 30 mm |
| Perforation: | comb 12 |
Modern Scientists
 Lin Qiaozhi 0.55$ |  Zhang Yuzhe 1.1$ |  Hou Debang 0.7$ |  Ding Ying 0.79$ |