Portugal
0.09 - 0.11$
price on 07.05.2023
| Country: | Portugal |
| Type: | Postage stamps |
| Series: | 50th Anniversary of the BIE / UNESCO |
| Nominal: | 6.50 $ |
| Year: | 1979 |
| Material: | Esmalte Fosforecente |
| Perforation: | comb 11¾ x 12½ |
| Mintage: | 5,000,000 |
50th Anniversary of the BIE / UNESCO
 Children reading Book 0.09$ |  Teaching deaf child 0.92$ |