Steve,
you can create patina / and accelerate the aging process.
However they dont seem to understand that you can already get vintage CA plates online (blue, black and even yellow). The only difference is that they are aluminum and would fail a magnet test. Seems to me if you want that vintage look, you already have it
stevehose said:Here in Louisiana, as long as the vintage plate matches the year of the car, it can be registered (benefit of living in a backward state)