[Mr70]

Did you buy that from Ron Norman?
I found that exact display hanging in a dealership here in the late 1980's & bought it.
Ron later bought it from me sometime in the late 90's.The far right lightboard had a motion motor in it too for a circular moving background.
I still have the 1971-72 Chevrolet dealers merchandise catalog that I found with it in a desk drawer,that Ron didn't want.