1965 Dodge Dart Charger

In most US states, the licence plates are applied for and granted to the owner of the vehicle. The plate usually does not stay with the car through multiple owners as is common in other parts of the world. Some states do and some states don't issue/require a front plate.

Did the dealership mount the license plate for his customer or did the customer add it to his car?

Next thing is if the screws and plastic hardware came in those bags?

When the first owner of the car sold it, did he keep the plates then? Sorry for my stupid questions!