Portugal
1.1 - 1.3$
price on 07.05.2023
| Country: | Portugal |
| Type: | Postage stamps |
| Series: | International Heart Month |
| Nominal: | 4 $ |
| Year: | 1972 |
| Material: | enamel |
| Size: | 31 x 39 mm |
| Perforation: | comb 13¼ |
| Mintage: | 1,000,000 |
International Heart Month
 Heart & Pendular Movement 0.11$ |  Heart & Centrifugal Curves 1.1$ |  Heart & Sinusoidal Curves 0.44$ |