Uruguay
Printed in sheets of 50 stamps.
| Country: | Uruguay |
| Type: | Postage stamps |
| Series: | Discovery of Insulin, 50th Anniv. |
| Nominal: | 27 $ |
| Year: | 1972 |
| Material: | medium, fluorescent |
| Perforation: | comb 12 |
| Mintage: | 500,000 |