I will take your replies to the mysteries we need to research and compile a list in this post. Then we can start a topic focus on one of these:

• '67 Body Tag Accessory Codes
• '67 3H Accessory Code (Topic # 64034)
• '68 Finger Pull Gas Cap Emblem
• '68 deluxe non-knit seatcovers

I realized I started a list with John's help: http://FirstGenFirebird.org/timeline.html

Most of these research projects will entail you to look at your Body Tag and pictures of the different variances to determine what you have. Some other codes may be needed and will be described in its specific topic. Again, this will be fluid on how this goes.