You might try a lye soap mixture like i use on antique bottles that i dig just joking, dont try it, it does a great job on pottery and bottles though.
Here's a question - I have zero coin experience and I've just started looking for silver halves. Some that I have found so far are quite circulated, as well as dirty, so their value I assume is basically bullion. The numismatic value of these coins is negligible, and I'd rather handle a clean coin than a dirty one. In these cases, what is recommended just to clean them up? In other words, if I'm not concerned about original luster or grading, what's the best way to get the dirt off of them? Any info is greatly appreciated...Jeff.
SilverSurfer, I decided not to waste any more money sending my raw Morgans to any TPG's anymore. I will continue to buy Morgans that have been graded, but I will not send any in to be graded anymore.
Jeff, I would use some mild detergent and water rinse well. Walmart sells some 91% isopropyl alcohol that could follow the rinse as it air drys fairly fast and doesn't have many of the problems of acetone. The coins you talk about are certainly not rare, and they should be enjoyed by you the owner. I have sold some into melt,and that is certainly worse Jim