I had a Makarov pistol replated, about 13 years ago, but when I got it back the nickel or chrome was over the number, and not visible at all. Recently I wanted another finish on it and the folks, out of state, did not want to touch it. Is it against state law to have a gun with the serial number covered over, not visible? I m willing to guess the number was just plated over, not removed. I also think the business is no longer alive. I am trying to find out. It was done in the Dallas area. I live in Lubbock.