Monday, May 18, 1981 El Salvador will issue: Stamp "Heinrich Von Stephan" face value 15, Stamp "Heinrich Von Stephan" face value 2,
| Country: | El Salvador |
|---|---|
| Issue: | The 150th Anniversary of the Birth of Heinrich von Stephan |
| Date: | 1981-05-18 |
| Print: | Unknown |
| Perforation: | 14½ x 14 |
| Emission: | Air Mail |
| Format: | Stamp |
| Face Value: | 15 Salvadoran centavo |
| Country: | El Salvador |
|---|---|
| Issue: | The 150th Anniversary of the Birth of Heinrich von Stephan |
| Date: | 1981-05-18 |
| Print: | Offset lithography |
| Perforation: | 14½ x 14 |
| Emission: | Air Post |
| Format: | Stamp |
| Face Value: | 2 Salvadoran colón |