Antonio de Ulloa (1716-1795), La Condamine, Jorge Juan y San
20 ¢ 1936
Ecuador
Variety: offset printing on the back of stamp (BE 395.1)
| Country: | Ecuador |
| Type: | Postage stamps |
| Series: | Bicentenary of La Condamine Scientific Expedition |
| Nominal: | 20 ¢ |
| Year: | 1936 |
| Size: | 41 x 30 mm |
| Perforation: | line 12½ |
| Mintage: | 300,000 |
Bicentenary of La Condamine Scientific Expedition
