Johann Florian Heller (1813-1871) pioneer chemical diagnosti
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| Country: | Austria |
|---|---|
| Issue: | Congress for Clinical Chemistry |
| Date: | 1981-08-31 |
| Print: | Recess |
| Size: | 30 x 39 |
| Perforation: | comb 14¼ x 13¾ |
| Emission: | Commemorative |
| Format: | Stamp |
| Face Value: | 6 Austrian schilling |
| Print run: | 3370000 |