I can guess what 99 out of 100 people will tell me, but I have to ask this anyway...
Are there any known cases of chrome rear bumper guards being installed as original equipment? I am aware the MCA rules state all 1967 rear guards were painted body color. I have in my possession, however, pictures of my 67, all the way back to 1969 with chrome rear guards. I dissassembled the car myself and found no evidence the guards had ever been removed. Additionally, I have two more pairs of rear guards that have 40-yr old pitted chrome on them. I also have three pairs of rear guards that are painted and I cannot find any difference between the chrome and painted parts (in other words, I believe all five pairs are ford parts).
I don't know what the process was that ford used to paint the rear guards and sequence them with the appropriate color car. My 67 is a special-order-paint car and I am aware of one other such car that one of the above-mentioned chrome rear guards were removed from.
I hate to restore something in a manner different that I think it was built simply because I'm following the MCA rules. So, again, I must ask, has anyone else found original rear bumper guards that were NOT painted body color?