I am trying to get smart on trim rings, but it looks like there are a lot of variations.

I have these 15" by 2 1/2" rings. Are these originals? What about the different shaped holes for the air valve. I have seen round, egg shaped, Oval, large and small. Is there a reference for these anywhere? Most of the information I have found is older.

Also, for the Rallye (Class 1) Wheels, there is old post that talk about 15x 6.5" Wide wheels, but the parts book only discusses 15x6 and 15x7? Was there variations here too? Pictures attached. thanks

Was told these are GM 69 Camaro, and possibly others. SO to readdress the question, is there a link to a reference that has a comparison of the trim rings for Mopar, let's say 68 to 71? Especially the 15" type wheels.

I think those are the trim rings for the 15 x 6 and 15 x 7 Road wheels , found on Trucks and some C-bodies. They had a number of square holes around the center part of the wheel and used a Super Coupe style center cap. I also had a guy , say they work well on the Recall wheel.

Frank