T-3 head light date code

[freddy]

[ QUOTE ]
What's it's diameter?
That third line is the date code.
First character denotes the month.
second year..
third day of month.
I can only make out the 6,so most likely 1966.Can you make out the third line any better?

[/ QUOTE ] 6012 is a 7" round(large). I thought the bulbs with lines in the script are 68-71 so how could this be a 66? I have a 4002 small round low beam with lines that the ink stamp date line is clear and reads 15 0 8 so it must be day-year-month.

[Smokey]

I haven't payed attention to the date codes, but the crystals have a pattern from early to late cars. I noticed this in the Impala's with their 4 headlight system and parting quiet a few of them out.


Like when we had our 63 SS car, a friend had had 4 63's in his backyard with the original T3s and they had different patterns to them and they were still the born with ones. Its interesting if someone could figure that code out. I had one that was burnt out..and another with a chip in a 29k mile virgin.

[Mr. Chevy]

I can't make anything more out on this date code line. The stamping is either smudged or just a poor stamp job...

Rich

[JohnZ]

I've attached the decode sheet for the T-3 date stamps.

[John Brown]

Pic

[freddy]

John thank you for sharing, the line number was throwing me off. Thanks, Dan

[Mr70]

15 0 8 would decode as:
1-January
5-line produced on
0-1970
8-day