Mercury Dime Question About Toning - Coin Community Forum

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Author	Replies: 7 / Views: 1,700
jstav Valued Member United States 179 Posts	Posted 10/04/2017 9:51 pm What could cause coins to look like this? Report this Post to the Staff

Crazyb0 Rest in Peace 10197 Posts	Posted 10/04/2017 10:05 pm Poor storage, some form of exposure to some vile elements, moisture, salt, water. May have been in an older folder/album media in some hot and nasty attic in the southeast. The reaction to the cardboard, glued backing and old plastic, trapped all that, caused that corrosion, not a normal tarnishing effect. Report this Post to the Staff
Mark1959 Pillar of the Community 7234 Posts	Posted 10/04/2017 10:29 pm If that crappy tone is on the surface and hasn't eaten into it then if you want to remove the tone this old trick works pretty good. Get a glass container, but a piece of aluminum foil in the bottom, place your dimes on the foil and sprinkle a Tablespoon of baking soda over the dimes, add a pinch of salt ontop of the baking soda then pour boiling water over the coins to cover them. Toning will get gone without any need to rub them with a cloth. Report this Post to the Staff
jstav Valued Member United States 179 Posts	Posted 10/04/2017 10:49 pm Thanks for the comments! Report this Post to the Staff
moxking Rest in Peace United States 17900 Posts	Posted 10/05/2017 08:43 am I wouldn't change them. There are hundreds of thousands of these dates still around that are "shiny". There are collectors of toned coins that would love these as Mercury dimes are not common with this type of toning. Leave them as is. Report this Post to the Staff
just carl Bedrock of the Community United States 20753 Posts	Posted 10/05/2017 09:06 am Not much to loose by trying to clean them up a bit. I'd just try dipping them in Acetone. They all appear to be toned from heat so Acetone will have little to no effect anyway. Report this Post to the Staff
SsuperDdave Moderator United States 23522 Posts	Posted 10/05/2017 11:44 am Quote: Not much to loose by trying to clean them up a bit. I'd just try dipping them in Acetone. They all appear to be toned from heat so Acetone will have little to no effect anyway. Agreed; this does not really look like "normal" silver sulfide toning, which makes electrolysis questionable as a solution. Report this Post to the Staff
Coinfrog Bedrock of the Community United States 94367 Posts	Posted 10/05/2017 4:52 pm Leave them alone for sure. Report this Post to the Staff
	Replies: 7 / Views: 1,700

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