Yes, it's interesting how items / features (especially during the 67 model run) can, at times, not follow suit. To be honest, given all the running changes through that year of production, its a wonder that anything showed some type of pattern.
According to the latest registry, the car was completed at San Jose on 5/15/67, completed at LAX on 6/16/67, and then shipped to Mel Burns Ford on 6/27/67.
I'm very anxious to see what other information can be had about the car - either from the family or by other means. I'm told that there are pictures of the car from when the second owner had it, but the family is still trying to go through his belongs, so, it may take some time.