Can't really tell if the wheels you're talking about are 14"s or not but the 15"s didn't come with a trim ring until 1973 because Pontiac didnt make a trim ring for it til then. I have heard that 14" honeycombs did come with the trim rings, though, in the earlier years. Maybe it was a manufacturing problem, who knows? In 1973 you could get the 15" trim rings at the parts counter, which everybody did, and then installed them on all the pre-73 15" wheels just because they looked nice with them. This is what the 15" wheels look like without rings.
