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Cleaning, Polishing, Dipping. Which Hurts Value The Most?

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Coinguy1000's Avatar
United States
305 Posts
 Posted 10/08/2012  3:37 pm Show Profile   Bookmark this topic Add Coinguy1000 to your friends list Get a Link to this Message Number of Subscribers
Hey guys,
I would like to know,

1. which do you think hurts the value the most?

2. why do you think that?

3. Which hurts the value the least?

4. Why do you think that?



Cant wait to see your opinions
Rest in Peace
bpoc1's Avatar
United States
4078 Posts
 Posted 10/08/2012  4:31 pm  Show Profile   Bookmark this reply Add bpoc1 to your friends list Get a Link to this Reply
All of the above! Especially slabbed coins or " slobberd" coins. Thank you Bigg Fredd. May he rest in peace.
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shadowtrooper78's Avatar
United States
1370 Posts
 Posted 10/08/2012  4:40 pm  Show Profile   Bookmark this reply Add shadowtrooper78 to your friends list Get a Link to this Reply
I guess it depends on the extent of the cleaning, dipping, polishing....However my first thought would be polishing. When I hear polished I get the mental image of a silver coin that has been buffed to look like a mirror. I would say cleaning would be next but again that would be the extent of the cleaning....if its hardly noticable then not a super value detractor....maybe a grade. Dipping is that controversial subject....I've dipped coins and they've slabbed by pcgs and ngc problem free.....that being said if you overdip a coin you can have something that looks like a polished coin.
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SsuperDdave's Avatar
United States
23522 Posts
 Posted 10/08/2012  5:12 pm  Show Profile   Bookmark this reply Add SsuperDdave to your friends list Get a Link to this Reply
Done right, dipping can be unnoticeable. This involves both proper technique, and proper choice of the subject coin. "Cleaning," depending on how you choose to define it, is more risky but still possible under the same rules as dipping. Polishing, on the other hand, well, you might as well be killing kittens as far as numismatists are concerned.
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macmercury's Avatar
United States
5837 Posts
 Posted 10/08/2012  6:26 pm  Show Profile   Bookmark this reply Add macmercury to your friends list Get a Link to this Reply
I have tinker with the idea dipping if done properly would not harm the coin, and actually improves it as I have seen with a few dealer that know what to do. NCS does it with their secret solutions to restore coins, but I have never try using their service, my first submission to NGC with my 1885 IHC grade MS-64 BN has a side note of "This is a good candidate for NCS". That was years ago when NCS was just started.

I have some dirty looking coins that I been meaning to try, but not sure which product to use it on, so leaving it all alone.
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murrellington's Avatar
United States
3276 Posts
 Posted 10/08/2012  6:47 pm  Show Profile   Bookmark this reply Add murrellington to your friends list Get a Link to this Reply
I think all of those types of cleaning are bad, but like previously stated, I think it depends on the extent to which they were cleaned. If they were all cleaned relatively the same amount, I guess it would depend on eye appeal, whichever had the best eye appeal after cleaning I'm sure would be worth the most.
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vermontensium's Avatar
United States
16679 Posts
 Posted 10/08/2012  6:51 pm  Show Profile   Check vermontensium's eBay Listings Check vermontensium's eCrater Listings Bookmark this reply Add vermontensium to your friends list Get a Link to this Reply
Dipping can actually help a coin if done right. Cleaning, in it's many forms of harshness, will diminish value slightly to greatly. Polishing well, you might as well drill a hole in that coin and wear it on your neck.
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Libertad's Avatar
Canada
3692 Posts
 Posted 10/08/2012  7:56 pm  Show Profile   Bookmark this reply Add Libertad to your friends list Get a Link to this Reply
I'd say polishing. You're removing metal as you do it and it's just a wreck. It blends all the details together and makes it look worn.

Next would be cleaning. You know almost instantly if a coin has been cleaned with enough practice. It is instantly non-mint state if cleaned.

Dipping is slightly unnoticeable. There is almost no reason to do it, though. If the coin is bright and shiny with lots of detail you don't need to dip it, and if it's dull and worn then a dip is noticeable.

I'd say that there are only a few rare occasions when these should be employed, with polishing being at a 0% rate. Never polish or buff your coins.
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enworb's Avatar
Australia
4411 Posts
 Posted 10/08/2012  8:34 pm  Show Profile   Bookmark this reply Add enworb to your friends list Get a Link to this Reply
Polishing destroyes the most value just because it hurts the eye appeal of the coin so badly. Dipping is the least destructive because it can in some circumstances improve the eye appeal of the coin. I would rather have a dipped silver coin than a black one.
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614 Posts
 Posted 10/08/2012  9:45 pm  Show Profile   Bookmark this reply Add tzarmarko to your friends list Get a Link to this Reply
Polishing. I wouldnt mind buying any of the other coins, but I will always stay away from Polished coins.
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westcoin's Avatar
United States
9794 Posts
 Posted 10/09/2012  03:14 am  Show Profile   Bookmark this reply Add westcoin to your friends list Get a Link to this Reply
Yep polishing will ruin a coin the most, along with any harsh cleaning with scrubbing or use of abrasives like silver polish.

A good dipping can actually improve the value of certain coins, but in many (most) cases it is noticeable, and will devalue the coin if done by an unexperienced person.
"Buy the Book Before You Buy the Coin" - Aaron R. Feldman - "And read it" - Me 2013!
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