I finally got a chance to sit down and scrub my "new" Mark II. First, it was far dirtier than I'd realized, both inside and out. I cleaned to whole thing with a little solvent and then wiped it down good with CLP. I put a lot of elbow grease into rubbing down the areas with the oxidation. Thankfully, that seemed to remove 80-90 percent of the problem, but there's still just a tad left. To get the rest, I may use a mild polishing compound that I have which is similar to Flitz (can't recall its name right now), or I may just call it good. On the whole, this pistol is in fine shape for its age. It just looks as though someone shot it a long time ago and then put it away without cleaning it. I figure the oils from the former owner/shooter's hand, plus a lot of time, caused the oxidation/patina on the front- and back-straps. The blued finish looks a whole lot better now, and the inside (bore, bolt, etc.) shines like a new dime. It'll be nice to get to shoot it once the arctic weather subsides.