1925 Stone Moutain Commemorative (with glue or somehting on it)

I open this coin up to the collective discussion of the group... I have this stone mountain coin and was wondering it's value due to the fact that it has what appears to be glue or some other
foreign material in a few places on the obverse side of the coin.
I would appreciate any and all discussion regarding whether or not this affects the value and should I attempt to remove this material or not?

 

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A soak in acetone could help if that foreign substance is glue........

 

Hi barbershop,

I suggest you start by giving that guy an acetone bath. Just be sure it is pure acetone which can be purchased from your local hardware store.

edit: What green18 said.

 

Hi, If you use acetone allways rince your coin with distiled water. NEVER use tap water as there are too many chemicals in tap water. Jim

 

OK, I have to present an alternate belief. Don't rinse the coin with water or anything after using acetone, except more acetone.

Hold the coin vertical and rinse both sides with a free flowing stram of acetone and allow to drain and evaporate off before moving it from vertical. I hold it by the edge in my fingers. Why add water to a coin, its evaporation can be slow and especially in recessed areas retained long enough to possibly trigger a reaction.

Sure , it is a long shot that something will happen if rinsed in wter, but it is an un-necessary step.IMO, others may differ.

 

I truly appreciate all this wisdom....but is acetone going to "clean" this coin or remove any of it's value? ( I eventually need to sell this coin ) First rule of coin collecting "NEVER, EVER, clean a coin!"
I just want to follow "the rules" :yes:

 

Agreed.

 

It looks in the photo like you described "glue" or glued paper such as paper tape. Unfortunately there have been several common glue formulas in the last 90 years. Some are more water soluble, some require heated water, some are alcohol soluble, some are acetone soluble, some are naptha removable ( Ronsen lighter fluid). None of these should react with your metal coin unless rubbed, scrubbed, or left standing for long periods. If it is modern glue, it could be acrylic or epoxy which is almost impossible to remove. I wouldn't use goo-gone or similar as its ingredients are not as well identified. Remember the surface beneath will probably look different than the rest, but this is due to toning exposure and not necessarily the agent. I would rinse with acetone at the end.

Since it is not my coin, and I am just seeing photos, it is hard to say what to start with, and I am sorry I can't say which. IMO. Others may differ.

 

I agree with everything Desertgem said in this thread.
Acetone will not do any damage do the coin or it's luster. Many times, it will not do anything at all.