Bulgaria
| Country: | Bulgaria |
| Type: | Postage stamps |
| Series: | 1100th Anniversary of the Death of St. Cyril |
| Nominal: | 28 ст |
| Year: | 1969 |
| Perforation: | line 11 |
| Mintage: | 150,000 |
1100th Anniversary of the Death of St. Cyril
 Constantine Cyril 0.26$ |  Constantine Cyril |