Black-headed Gull (Larus ridibundus)
70 $ 1992
Portugal
ECO 92 - United Nations Conference on Environment and Development
| Country: | Portugal |
| Type: | Postage stamps |
| Series: | United Nations Conference on Environment and Development |
| Nominal: | 70 $ |
| Year: | 1992 |
| Material: | Esmalte |
| Perforation: | 12 x 12½ |
| Mintage: | 600,000 |
United Nations Conference on Environment and Development
 Black-headed Gull (Larus ridibundus) |  Common Kingfisher (Alcedo atthis) 1.7$ |