Just doesn't fit with our era of cars. I was never a fan even on the hot rods.
from the 'net:
"Lynx-Eye Blue-dot taillamp lenses were NEVER used as factory equipment on any production vehicle. They were an accessory available at auto parts and hardware stores beginning sometime in the late 30s.
When Federal/State vehicle standards were regarding lighting were standardized the lenses became "illegal" since the only color lights showable by law from the rear are red, amber and a white licenese illumination light.
I visited a junkyard in Industry TX years ago and found about 1/3 of the cars there had blue-dot lenses. That was the only junkyard I ever saw these lenses in vehicles in these numbers.
The Blue-Dots have become "legend" so the reality of the matter is lost in the fog of memories and dreams. From all I have read and heard from "old-timers" they were never the norm in car circles, never universally popular throughout the country, and ceased being available sometime around 1957-58. The newest counter display I have ever seen had a 57 Chevy lens as the newest and I have seen counter displays with 40 Fords as the newest and 49 Fords as the newest."
"The story I was told was they were used back when doctors mad house calls. If a doctor had blue dots, the cops knew not to pull him over if he was speeding. Once the hot rodders found out, they put them on so the cops wouldn't give chase at night."
Interesting lore if nothing else...
Ray