I’d be willing to bet that they probably did. Would be interesting if someone restoring one would find it. One would have to carefully sand it down. I didn’t notice mine till just recently, like 19 years later while looking through my old pictures. The fact that my car is red and the grease pen they used was an orange color made it a little difficult to notice. You had to be looking at the right angle. I think just about any other color of car would make it show up much easier.