Found it under the seat...

[47Hammer]

I decided to remove the drivers seat in my '69 Z/28 today to see if I could get a little more leg room by installing those seat extenders. Well, after removing the seat carefully, it is by the way all original interior, anyway I noticed a bunch of stuff under the carpet, a used match, stick of juicy fruit spearmint gum, still in the wrapper and hard as a rock along with about .65 in change and of course a Mickey Dee's french fry. After a little more investigating I see this little piece of paper with what looks to be the carpet information. My car has a 06A build date and the date on this is 4-7-69 of all things.....4-7 is my B-day!