Vintage 1960s Or 1970s Ford ? Chevrolet Chevy ? GMC ? Tail Light Ring Bezel Trim

Description

Not sure of what these fit.
Please look at the pictures and check out the measurements and measure yours please,. When these are sitting flat on the table they do have a curve to them and they curve up and away from the table in the center.
Vintage 1960s Or 1970s Ford Chevrolet Chevy GMC Tail Light Ring Bezel Trim.
The approximate measurements are:
overall of the outside;
, height 11 and 9/16 inches X width taken at the center  is 4 5/8 inches X thickness varies from 5/8 inch on one end and the other end is 3/4 of an inch thick
The measurements inside of the Rings are height approximately 9 13/16 of an inch 2 7/8 inch in the Center.
These are used and they are in overall good condition for their age they do have scratches Nicks dings and one set of marks please see the up close pictures. Please see the last picture  up close because it shows  the Nick marks . These are made from aluminum and the rust marks are stains from being next to steel. The rust stains are by the screw holes on all four of the front and on the back side it looks like it was the bottom Edge maybe it could have been the top but the one Edge has rust stains on each of them.