Very interesting. The car also had a wing and one of those cheezy dodge dart scoops. Both looked like they had been professionally installed, which probabily meant "the dealer". The 340 logo lasted the life of the car, and again did appear to be origional(as crappy as the origional mopar finishes were). However, as I've found with mopars, nothing is "the law". I long ago lost the broadcast sheet and the origional registration. It would be interesting to find the origional owner.
Since I am restoring it to some faxcimilie of the way I found it, is there any guidance on who to apply those 340 logos without eyeballing the job?