64 Dodge Dart vin # attachment

I was told the holes were used during the stamping of the plate. That doesn't explain why there are two holes in the door frame, other than to line it up. They were then welded in place with a couple of spot welds. on a 60 to 62 plate take a good look at the plate.... the first 2 numbers are stamped from the front with a different stamp and the last numbers are stamped from the rear with a different stamp set.