BBSWD,
Regarding Art Deco interior colors,
I think the GMCs were silver brown metalic or something like that and the Chevs were the hammered brown.
I have asked the same question in the past but no one had an answer. My Chev is(was) the silver brown metalic. Not sure why, but it was. For now, I went with a light gray but if I ever do a full resto job, I sure liked the look of the original.
