ID:
1931
Maker's Name:
Unknown
Where made:
USA
Dimensions:
2.5 × 2.5 × 6.1 cm
The globe contains two spirals which spread the neon gas discharge between them, so it is more visible.
1931 - Neon Glow Lamp
The globe contains two spirals which spread the neon gas discharge between them, so it is more visible.
