11th International Clinical Chemistry Congress 6 öS — Austria, 1981
11th International Clinical Chemistry Congress (Austria, 1981), face value 6 öS. Photo, catalogue value, details and photo identification.
- Issue date
- 1981
- Face value
- 6 öS
- Colors
- Dark brown red
- Print run
- 3,370,000
- Yvert
- AT 1505
- Michel
- AT 1676
- Stanley Gibbons
- AT 1904
- Scott
- AT 1183