Finland
0.18 - 0.22$
price on 31.07.2022
The diagram of the camphor molecule differs slightly between the two stamps.
| Country: | Finland |
| Type: | Postage stamps |
| Series: | 100 Years Finnish Chemical Society |
| Nominal: | 2.10 mk |
| Year: | 1991 |
| Size: | 35 x 25 mm |
| Perforation: | comb 14 |
| Mintage: | 5,000,000 |
100 Years Finnish Chemical Society
 Camphor Molecule, erlenmeyer Flask 0.1$ |  Camphor Molecule, erlenmeyer Flask 0.18$ |