someone asked me if I had any 68 rear quarter windows
I do, tons of them tinted, non-tinted 68,69,70,71,72
then he asked about the dates (dates?)
where are they and how do you tell what they are

The glass date code is two letters: Example-my 68. They are X X which is Feb. 68. If you list the codes you have we can give you the dates.

Did a search. Here are the codes...
http://www.chevelles.com/forum/ultimatebb.php/topic/6/5579.html#000000

thanks
learn something new every day