20th Anniversary of UNC on Human Environment 20 分 — China, 1992
20th Anniversary of UNC on Human Environment (China, 1992), face value 20 分. Photo, catalogue value, details and photo identification.
- Issue date
- 1992
- Face value
- 20 分
- Colors
- Multicolor
- Yvert
- CN 3116
- Michel
- CN 2425
- Stanley Gibbons
- CN 3796
- Scott
- CN 2392