Brazil
Tropodiffusion, microwave transmition
| Country: | Brazil |
| Type: | Postage stamps |
| Series: | Communications |
| Nominal: | 60 Brazilian centavo |
| Year: | 1972 |
| Material: | Couché |
| Size: | 41 x 29 mm |
| Perforation: | comb 11½ |
| Mintage: | 500,032 |
