Scientific Experiments overprinted 20 Gp — Ghana, 1970
Scientific Experiments overprinted (Ghana, 1970), face value 20 Gp, “Philympia 1970 International Stamp Exhibition” series. Photo, catalogue value, details…
- Series
- Philympia 1970 International Stamp Exhibition
- Issue date
- 1970
- Face value
- 20 Gp
- Colors
- Multicolor
- Yvert
- GH 380
- Michel
- GH 407A