Gualberto Villarroel and refinery
90%
| Country: | Bolivia |
|---|---|
| Issue: | President Villarroel |
| Date: | 1971-05-20 |
| Print: | Offset and Lithography |
| Size: | 36 x 28 |
| Perforation: | comb 13½ |
| Emission: | Postal Tax |
| Format: | Stamp |
| Face Value: | 30 Bolivian centavo |