USSR
| Country: | USSR |
| Type: | Postage stamps |
| Series: | Children of the USSR |
| Nominal: | 20 k |
| Year: | 1938 |
| Perforation: | comb 11¾ x 12¼ |
| Mintage: | 1,600,000 |
Children of the USSR
 At the Children's Doctor 0.44$ |  Statue of Lenin and Children 0.53$ |  Biology Class |  Pioneer Camp "Artek" 0.53$ |
 Biology Class 1.3$ |  Young Inventors at Play 1.6$ |  Young Inventors at Play 15$ |