Difluorbutane Molecule: 3 Formula 90 Ct. — Switzerland, 1992
Difluorbutane Molecule: 3 Formula (Switzerland, 1992), face value 90 Ct., “International Chemics Nomenclature Conference” series. Photo, catalogue value…
- Series
- International Chemics Nomenclature Conference
- Issue date
- 1992
- Face value
- 90 Ct.
- Colors
- Multicolor
- Print run
- 6,452,000
- Yvert
- CH 1397
- Michel
- CH 1467
- Stanley Gibbons
- CH 1240
- Scott
- CH 913