Peace Dollar Glue Spots (Pic)

Sorry, I should have been more clear- I understand that... I was actually referring to the splotchy change in the fourth picture I posted. I looked at pictures I took prior and there wasn't such a contrast before.. was just curious why that might happen.

Though in regards to what you mentioned- it is actually a nice bright silver underneath where the tape was. Is dipping done to try and get closer to that original color? Was kind of cool to see what it once looked like.

Again, I think I'll leave the other ones alone but maybe I could find someone to dip this one just to see and understand the process better.

 

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Dipping will not restore original luster. Once the mint luster is gone, it's gone for good. The mint luster is created by the metals natural flow during the minting process. That is why, on original uncirculated coins, there is a natural cartwheel effect.

 

Makes sense. I have no intent to alter any other coins in my collection.. at this point since I have done the Acetone soak on this one and it has the black corrosion spot, I could take it through some of these steps in an effort to learn more about them and their effects.

If anything, I'm trying to learn what to watch for in coins I buy to avoid ones that have been altered. I've read a lot about these different methods but the theoretical is different from actually seeing it done. In this case, by my own error or other factors the soak had an effect on color of the coin... makes me more wary of doing it at all in the future but I had to see it for myself to know.

 

You can also educate yourself by looking at high quality auction photos at heritage auctions. Often rarer coins can be found that have been harshly cleaned and worse (holed, whizzed, repaired, etc) already attributed as details in a slab. Then just look thru E-bay and compare- sometimes it seems like 90% of the coins being sold there have some sort of problem.

 

Dipping a coin usually refers to using a sulfuric acid/thiourea preparation that is available as eZest. You will find much controversy about this product, but AFAIK, the product removes toning. Does it remove any silver (beyond that tied up in the tarnish)? I don't know. I have used it carefully on uncirculated and near uncirculated coins and have been happy with the results. On worn coins, it just makes them look odd. With that said, try soaking your test coin in some lemon juice for awhile and see what you think. I would at least try and remove the sticky glue/tape from the coins. Eventually the toning should even out over the coin.

 

I know not every situation is the same but I once bought a $5 lib with what looked like a small amount of clear silicone on the reverse. It must have been used to stick it to something or in jewelry. I soaked it in warm water for a while and was able to peel it off with a tweezer with no ill effects.

 

Tried the lemon juice for five minutes... it did remove the dark weird coloration contrast on the obverse. Thanks!

I want to take the tape/adhesive off the others but the color issues with make me nervous to mess with them since I really don't know what I'm doing.

I am liking how this one looks without the tape- although when I did the lemon soak, it took the grey film off the obverse but now the reverse has some dark grey smudges that weren't there beforehand. It's like the gunk got transferred from the front to the back. Things like that give me pause about cleaning all of them this way.