I found this info on Guide T-3 headlights on modifiedcadillac.org

> A Guide to Guide T-3 Headlights

Can't guarantee the accuracy, but it is the only reference about the subtle differences that I could find for you guys who want to be absolutely period perfect.

More info -

I shouldn't have started looking at T-3 info. I found more. Still can't guarantee how correct it is.

Date code info inked on the back of the bulb - from corvetteforum.com
> Date Code Diagram

Verbal description of date codes on corvetteforum.com
> Date Code verbal

Here are some T-3 reproductions:
> Reproduction T-3 Diagrams
> Reproduction T-3 Pictures

Last edited by LonnieC; 01/17/2013 11:33 AM. Reason: More info

- Lonnie
My '54 3104
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lonniecook [at] aol [dot] com. I sold my '54 3104 12/12/2017, but I still visit Stovebolt.

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