Uruguay
Printed in sheets of 25 stamps.
| Country: | Uruguay |
| Type: | Postage stamps |
| Series: | Viking Spacecraft on Mars |
| Nominal: | 0.50 N$ |
| Year: | 1976 |
| Material: | fluorescent |
| Size: | 42 x 31 mm |
| Perforation: | comb 12 |
| Mintage: | 50,000 |