Front/Back license plate brackets for '67 Barracuda.

Thanks a lot! the valance on the back of the car must have been worked on as those holes aren't there. also the holes for the back up lights are not completely round. Must have bondo in them if that's the right term. I could probably drill those holes i'm thinking. I noticed that there is a single hole on top and two holes on the bottom. Does that mean that there is a bracket that attches to the holes that the license plate fits in?