Nice.
1967-68 Camaro Z-28 trim rings used on the 15x6 DF rally wheels.(Ft.Disc Brake)
These are the first design trims rings which are the ones that they used on the assembly line.
They have the vintage open valve stem holes & four retaining clips on the back side,unlike todays repops.
Might want to post here as well..
http://www.camaros.net/classifieds/showcat.php?cat=8