Difluorbutane molecule: 3 different formula
90 Ct. 1992
Switzerland
0.32 - 0.38$
price on 02.11.2022
| Country: | Switzerland |
| Type: | Postage stamps |
| Series: | International Chemics Nomenclature Conference |
| Nominal: | 90 Ct. |
| Year: | 1992 |
| Size: | 37 x 27 mm |
| Perforation: | comb 11¾ |
| Mintage: | 6,452,000 |