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How do you remove scotch tape sticky residue without "cleaning" the coins?
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This is not the way to collect coins:
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A binder titled: World Coins - Type Sets
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Yes, the coins are stuck on the paper with scotch tape and have been there for more than 40 years.
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There is this very nice 1959 Bermuda Crown in a proper holder, taped to the paper.
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Besides removing the tape stickum the best way & sorting out all the silver coins, are there any other ideas? These 1950s - 60s coins are from Great Britain, Canada, France, Scandinavia, Italy, Spain, and Germany. Total of 70 coins, all denominations, Ni, Ag, Cu, brass/bronze, and even Al.

Try rubbing the coins with vegetable oil. I have heard that it breaks down that sort of residue.

High proof alcohol will easily remove all the glue, and not harm the coins at all. I am sure there are other types of solvents that would do the same (such as naptha).

I've use ethanol acetone (but 70% isopropyl and up are good substitutes) on coins that aren't really numismatic examples.


~JobIII

Do not Rub ,Blot gently

wait for other solvent suggestions, look for old thread, If you do not send for grade it will not matter unless you sell an then you should reveal that Scotch tape has been removed or say lightly cleaned

Acetone, alcohol, and paint thinner (mineral spirits) are good choices. Experiment on the low value coins to see which solvent is most effective before going to the higher value items.

On cleaning, not being a numi guy I have trouble getting excited about minor washing (regardless of the solvent, whether detergent water or acetone). Someone that is in the know is going to have to show me the detectable difference in a coin between before and after.

Let's start with a baseline of a newly minted ASE (or equivalent). If I dip it in soapy water and blot it dry, can anyone tell the difference, even under a microscope? If so, show me the pics. If this one isn't detectable then what's the excitement about?

Thank you for all the suggestions. I'll try a few coins today and see what happens.

I looked up the 1959 Bermuda Crown, its the 350th anniversary of the founding of Bermuda, and today is worth $40 to $45, if a buyer can be found who wants it, of course.

If a coin is soaked in acetone and then allowed to air dry, is that still considered "cleaned" for the purposes of reselling it?

There were 10 silver coins in the book that I will let go:
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I did not clean them, they aren't bad at all. I put them up for trade in the RealCent Market area, for USA 90%, 12 quarters and two dimes.

300Braveheart wrote:If a coin is soaked in acetone and then allowed to air dry, is that still considered "cleaned" for the purposes of reselling it?

What most people consider "cleaned" should really be called polishing or etching. Acetone won't affect the surface of the coin, so it wouldn't be considered "cleaned".