Draft swing-wing aircraft by Leonardo da Vinci
93%
Country: | Germany, Democratic Republic |
---|---|
Issue: | Historic Aircraft; European airmail exhibition ""Lilienthal ' |
Date: | 1990-02-20 |
Print: | Offset and Lithography |
Size: | 35 x 35 |
Perforation: | comb 13 |
Emission: | Commemorative |
Format: | Stamp |
Face Value: | 20 East German pfennig |
Print run: | 8000000 |