1968 Barrcuda grill color

Davescuda is on to something. Only after restoring my grill on my '68 cuda have I become aware that there are differences in some 'cuda's grill finishes. This may not be for everyone, but mine is a restoration of a very original, low mileage, BB car. My grills are a natural light grey plastic and have been masked and painted flat black on the back edges at the factory. I didn't have the heart to spray the whole part argent silver which would have made the silver part much brighter but would also cover the factory masked black areas. So since my grills were in great shape I thoroughly cleaned them and put them on the car. This results in my grill being very original but probably a little darker grey due to it's age. I have also acquired another grill which has sharp, chromed edges but painted black. There are differences and I don't understand them but will follow this thread to learn.