These are off of a 72. I cleaned them up and they look great. One has some curb rash on the "nipple". They all had interior surface rust. I cleaned that and treated with POR metal ready. $80 plus shipping
Click to view attachment
This is a typical looking cap, at least the 3 good ones.
Click to view attachment
this is the worst one with some dents and scratches in the center
Click to view attachment
typical interior shot. They all have about 3 places like this. have been treated with zinc.
Click to view attachment