Carl Auer von Welsbach (1858-1929): gas mantle light 40+40 Austrian groschen — Austria, 1936
Carl Auer von Welsbach (1858-1929): gas mantle light (Austria, 1936), face value 40+40 Austrian groschen, “Inventors” series. Photo, catalogue value…
- Series
- Inventors
- Issue date
- 1936
- Face value
- 40+40 Austrian groschen
- Colors
- Blue black
- Print run
- 130,000