Bulgaria
| Country: | Bulgaria |
| Type: | Postage stamps |
| Series: | 400th Birthday of Rubens |
| Nominal: | 23 ст |
| Year: | 1977 |
| Size: | 40 x 65 mm |
| Perforation: | comb 11¾ |
| Mintage: | 500,004 |
400th Birthday of Rubens
 The Confederation of Earth and Water (Detail) 0.1$ |  Venus and Adonis (Detail) |  Tryst (Detail) 0.47$ |  Portrait of a Chambermaid 0.52$ |