Western Green Mamba (Dendroaspis viridis) 20 GFr — Guinea, 1967
Western Green Mamba (Dendroaspis viridis) (Guinea, 1967), face value 20 GFr, “Research Institute for Applied Biology (1967)” series. Photo, catalogue value…
- Series
- Research Institute for Applied Biology (1967)
- Issue date
- 1967
- Face value
- 20 GFr
- Colors
- Multicolor
- Perforation
- line 13½
- Printing
- Photogravure
- Yvert
- GN 322
- Michel
- GN 431A
- Stanley Gibbons
- GN 596
- Scott
- GN 471