Do the "marks" look like sand scratches which were chromed over, but ONLY noticeable when the light is bright and at a certain angle? Similar to the "sand scratches chromed over" on the OEM door handles? Yet the surface is smooth?
I had noticed the "sand scratches" on the Chrysler production outside door handles years ago. A friend was doing a complete restoration of a Superbird and sourced all of the parts from the premier restoration parts source of that time. I looked at the new door handles he got and they were completely smooth in the strong light at the right angle. They had been either re-chromed OEM items or otherwise, but they had an aftermarket chrome job on them. Later, I noticed that all other OEM chrome items on my Chryslers had the same smooth and shiny chrome finishes, but in the right light, the sand scratches under the chrome were there.
At some re-chrome vendors I saw at Mopar Nats long ago, there were usually examples of their work vs other re-chromers. In "the other guys'" items, much of the existing detail was chromed over and lost. As if the paint was way too thick on a painted article.
Just some thoughts and observations,
CBODY67