Related Clues:
- Second in a noble line?
- Gas — none spreading
- Gas in lighted signs
- Tavern sign gas
- Luminous sign gas
- Gas in marquees
- Bright gas
- Electric sign filler
- Ionizable gas
- Element between helium and argon on the periodic table
- Bright sign gas
- Retro sign gas
- Gas in bar signs
- Bright, like some crayons
- Priest inside to smell unpleasant gas