World Meterology Day
53%
| Country: | China, People's Republic |
|---|---|
| Issue: | World Metrology Day |
| Date: | 2015-05-20 |
| Print: | Offset lithography |
| Perforation: | 13 |
| Emission: | Commemorative |
| Format: | Stamp |
| Face Value: | 1.20 Chinese renminbi yuan |