Bulgaria
Stamp from block
| Country: | Bulgaria |
| Type: | Postage stamps |
| Series: | International Stamp Exhibition London 1990 |
| Nominal: | 50 ст |
| Year: | 1990 |
| Perforation: | comb 13 |
International Stamp Exhibition London 1990
 Stamp Great Britain No. 1 |  Sir Rowland Hill |