Wilhelm Franz Exner (1840-1931) founder of the museum
93%
| Country: | Austria |
|---|---|
| Issue: | Technical Industrial Musem |
| Date: | 1979-10-19 |
| Print: | Photogravure and Recess |
| Size: | 30 x 39 |
| Perforation: | comb 14¼ x 13¾ |
| Emission: | Commemorative |
| Format: | Stamp |
| Face Value: | 2.50 Austrian schilling |
| Print run: | 3200000 |