South Korea
| Country: | South Korea |
| Type: | Postage stamps |
| Series: | World Environment Day |
| Nominal: | 30 ₩ |
| Year: | 1981 |
| Perforation: | comb 13 x 13½ |
World Environment Day
 World Environment Day 0.38$ |  Fish and birds in a clean environment |  Black-tailed Gull (Larus crassirostris) 0.79$ |