Portugal
0.1 - 0.12$
price on 07.05.2023
1 Centenary of the Birth of Professor Ferreira da Silva
| Country: | Portugal |
| Type: | Postage stamps |
| Series: | Ferreira da Silva Teacher, Birth Centenary |
| Nominal: | 1 $ |
| Year: | 1956 |
| Material: | Esmalte |
| Perforation: | comb 13½ |
| Mintage: | 4,500,000 |
Ferreira da Silva Teacher, Birth Centenary
 Silva, Ferreira da (1853-1923) chemist 0.1$ |  Silva, Ferreira da (1853-1923) chemist 4.7$ |