Glen
I agree with the majority of responses that say dark argent center and light argent outer with satin black along top where attach buttons go. Totally Auto has good stuff that can make a grill look pretty darn nice in my opinion. There is probably other options as well. I restored a '70 RR grill recently using their products (in rattle cans no less). Here is a shot of a bezel.

7208129-IMG_1034.jpg (354 downloads)