Schickard's Calculating Machine
93%
| Country: | Germany, Federal Republic |
|---|---|
| Issue: | Count machine |
| Date: | 1973-06-12 |
| Print: | Offset and Lithography |
| Size: | 33 x 28 |
| Perforation: | comb 14¼ x 13¾ |
| Emission: | Commemorative |
| Format: | Stamp |
| Face Value: | 40 German pfennig |
| Print run: | 9150000 |