Molecular Structure & Factory
60%
| Country: | Finland |
|---|---|
| Issue: | Chemical Industry |
| Date: | 1970-03-26 |
| Print: | Photogravure |
| Perforation: | comb 14 |
| Emission: | Commemorative |
| Format: | Stamp |
| Face Value: | 0.50 Finnish markka |
| Print run: | 3000000 |