I have used denatured alcohol thus far and it did well for removing a lot of it. It won't remove some of the gunk however.

First and foremost hello from Florida. I have lurked around here a bit in the last year but just joined this evening. Thanks for having me. :D I have several pg items but recently I have come into possession of an original nickel ms1k. That's the good news. The bad news is that it has been pretty ne...