Portugal
0.09 - 0.11$
price on 07.05.2023
| Country: | Portugal |
| Type: | Postage stamps |
| Series: | Continual Education |
| Nominal: | 4 $ |
| Year: | 1977 |
| Material: | phosphorescent paper |
| Perforation: | comb 12 x 12½ |
| Mintage: | 3,000,000 |
Continual Education
 Student, Computer and Book 0.2$ |  Folk Dancers 0.09$ |  Tractor drivers 0.09$ |  Atom and people 0.08$ |