David
The correct color on a Chevy for the raised portion of the speaker grill and glove box door is more of a silver with the back ground recessed part the cab interior color. I don't know the color but maybe someone else can come up with that for you. But during the Korean war years (late 51, 52 and early 53) the entire dash was plain steel - no stainless, painted body interior color. Here is a link to a technical article from Jim Carter's website.
Korean war shortages