Ar-4 AR4 J3A argon purple glow vintage light lamp bulb

What is for sale: Ar-4 AR4 J3A argon purple glow vintage light lamp bulb

---

1/4 Watt T41/2 Clear Glass GAP Filament
ARGON = PURPLE (NEON=Orange) Glow Test Lamp Bulb
Used in Various Test Equipment INDICATOR Lamp
These have become Novelty Very Collectible
Please ask if you are not sure of your application
We will be happy to assist you
P.O.BOX 206 ROSENDALE NY 12472-0206 U.S.A., United States