Bulgaria
| Country: | Bulgaria |
| Type: | Postage stamps |
| Series: | Youth Stamp Exhibition '74: Children's Drawings |
| Nominal: | 3 ст |
| Year: | 1974 |
| Perforation: | comb 13 |
| Mintage: | 2,000,010 |
Youth Stamp Exhibition '74: Children's Drawings
 Exploration of outer space for peaceful purposes 0.05$ |  Salt huts 0.06$ |  Fire dancers, by Detelina Lalowa |  Friendship USSR-VRB, by Vanya Bojanowa |
 Spring, Painting by Vladimir Kanchev |