Uruguay
Printed in sheets of 50 stamps.
| Country: | Uruguay |
| Type: | Postage stamps |
| Series: | Panamerican congress of Gastroenterology, 12th Ed. |
| Nominal: | 58 $ |
| Year: | 1971 |
| Material: | medium, fluorescent |
| Perforation: | comb 12 |
| Mintage: | 100,000 |