Francisco Jose de Caldas and Hypsometer
56%
| Country: | Colombia |
|---|---|
| Issue: | International Geophysical Year |
| Date: | 1958-05-12 |
| Print: | Photogravure |
| Perforation: | 12 |
| Emission: | Commemorative |
| Format: | Stamp |
| Face Value: | 10 Colombian centavo |