<span style="font-size: 14pt">One of the TT examples on Dale's website is my '69 Chevelle SS (the one with the 787 interior code). Link above to Dale's '69 TT discussion did not work so try
this.
My TT:
(Note the "BL180612" on the 4th line.)
I do not have a build sheet, window sticker, or car shipper, but I do have a trim card:
According to Dale's research, regarding the last group of alpha numerics on the 4th line of the TT ...<span style="font-weight: bold"><span style="font-style: italic">."The first 3 digits have not been correlated to any paperwork to date but the second 3 digits correspond to the trim inspection sequence number found on the trim card."</span></span>
In other words the "612" on my TT matches the "612" on my trim card. </span>