[decooney]

1320,
How do you know its not a former ERA chassis; i.e. previously wrecked or revived salvage, with a different body on it?

Being a former dealer/dismantler, I've seen all sorts of insurance revived stuff that people put back on the street even though they had junk certificates. Its not easy, and it can be done. I did it through DMV with a 65 Mustang once that was junked out. You can check the back of the frame to see if its stamped if it was an ERA in a former life.