George P. Smith & Frances H. Arnold & Sir Gregory P. Winter 300 Kz — Angola, 2019
George P. Smith & Frances H. Arnold & Sir Gregory P. Winter (Angola, 2019), face value 300 Kz, “Nobel Prize Winners (2019)” series. Photo, catalogue value…
- Series
- Nobel Prize Winners (2019)
- Issue date
- 2019
- Face value
- 300 Kz
- Colors
- Multicolor
- Yvert
- AO 1853
- Michel
- AO 2092
- Scott
- AO 1673