Okay, I tried the salt and vinegar cleaning. I actually had fewer quarters needing cleaning than I thought. When I dumped them out of the bag a lot of green sand came out as well, so I guess the process of drying out turned some of the corrosion loose from the coins. I separated the clean coins from those that needed cleaning and put the dirty coins in a glass bowl. I added the vinegar and rock salt (I used rock salt because I had some on hand), and I watched. I swirled it around for a minute or so until the salt was completely dissolved and although the vinegar was getting a slight greenish color (no photo of this stage since no action was taking place), I wanted to see more cleaning action..... So I decided to add a layer of aluminum foil to the bottom of the bowl to set up a natural electrolysis action. WOW, did it work fast. I noticed there were bubbles forming, so I set the camera back up to take a photo and after a couple of shots I realized the coins were all turning "PINK". Stop the action quick!!!! I pulled out the coins and rinsed them in a colander. NOT what I was expecting. I realize the salt and vinegar tip by Ron, did not include the addition of an aluminum anode. With the method I used, the coins were substantially cleaned in a matter of minutes even though they were all packed together. However, they are now all or partly pink, which doesn't seem to be a good idea. So my question is, "If I had just left them in the vinegar and salt and allowed them to sit over night would they have still turned pink

Does cleaning them with "Sno-Bol" or "Lime-Away" cause the coins to turn Pink also

Is there some way to turn them back to silver again? Hope this helps someone else. My cheeks are now pink with embarrassments. Beach Papa <img src="http://www.treasurenet.com/forums/attachment.php?attachmentid=930422"/><img src="http://www.treasurenet.com/forums/attachment.php?attachmentid=930423"/><img src="http://www.treasurenet.com/forums/attachment.php?attachmentid=930425"/><img src="http://www.treasurenet.com/forums/attachment.php?attachmentid=930426"/><img src="http://www.treasurenet.com/forums/attachment.php?attachmentid=930427"/>