It's for California. I was attempting through AAA, but they weren't quite able to check all the boxes required for transfer of an out of state title. They like to see the VIN in two places on the vehicle. I told them there was likely only one due to the unibody. They are sending me to DMV proper, and they may have reference books available to help them verify the year of the vehicle.
It's a Texas car and back then they apparently used the engine number for the VIN. My engine number matches my Texas title with registration documents through the decades back to the 50s that also match. That doesn't satisfy CA, as they would still like to see a 652.... VIN in two places (if a second one exists).
I just checked the two mentioned possibilities for nada.