NOS 70 Duster Grille?????

I found a 70 Duster grille. The finish is just dusty from sitting on a shelf for 42 years. I would like to clean it up. What should I use? Also what do I use to clean it once its on the car? Sorry its not for sale.I was smiling like a kid in a candy store when I found it.thanks. Birdtracker

I wouldn't use anything but soap and water.....AND be VERY gentil with it. Most people (self included) buying NOS want original details, "Pretty" is less important.