Below will be pics of where the scribing was.
I completely disassembled everything (even removing the front sight as it was beat to heck and had to be replaced) and then put everything in an ultrasonic cleaner with some excellent material that will remove all kinds of grease and oil (to include asphalt). It is called Excel Clean HD from a company called ASTEC out of Indianapolis (I have no stake in them other than I found this product while doing work at a plant that makes asphalt and it really inpressed me).
I then polished the hammer and trigger and set them aside. I used a Dremel tool with a flap wheel sander to remove most of the extraneous scribbling. I also used some Cratex tips and other Dremel pieces to try
to get it off without messing with the basic shapes and curves.
I then masked off the cylinder, only leaving the flutes exposed. The cylinder, frame and trigger assembly then went to the blasting cabinet. I blasted everything with 120 grit aluminum oxide.
I removed the tape from the cylinder, ran a bolt up through and chucked it in my drill press. I used different grit sand papers to remove the dings and finished it with a 600 grit wet/dry automotive paper.
The color is stainless steel, I did nothing to it except coat it with an gun oil called Weapon Shield
It did come with Pachmyer grips (rounded at the base and they do have the ruger medallion installed) and I think that it came from Ruger configured this way, but the grips are pretty crappy, like the gun was when I got it.
I did also replace the front sight with some help from a Rugerforum member (thanks John, the sight was perfect) as Six series sights are hard to come by.
Here are close ups of where the markings were, as you can see, they are no longer there:
