Portugal
0.72 - 0.86$
price on 07.05.2023
| Country: | Portugal |
| Type: | Postage stamps |
| Series: | Inauguration of the Porto Refinery |
| Nominal: | 6 $ |
| Year: | 1970 |
| Material: | Esmalte |
| Size: | 34 x 36 mm |
| Perforation: | comb 13½ |
| Mintage: | 1,000,000 |
Inauguration of the Porto Refinery
 Oil Refinery in Porto 0.09$ |  Oil Refinery in Porto 1.1$ |  Oil Refinery in Porto 0.73$ |  Oil Refinery in Porto 0.72$ |