Bulgaria
0.21 - 0.25$
price on 10.03.2023
JINR - Joint Institute for Nuclear Research
| Country: | Bulgaria |
| Type: | Postage stamps |
| Series: | Science |
| Nominal: | 13 ст |
| Year: | 1981 |
| Perforation: | comb 13¼ x 13 |
| Mintage: | 250,000 |