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 Replies: 16 / Views: 4,231 |
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Valued Member
United States
259 Posts |
I'm giving serious consideration to a coin that has a small amount of Verdigris spots on the reverse. I've uploaded a complete shot, plus some specific sections to show where the Verdigris marks are. Curious to hear opinions about whether this amount of Verdigris on an IHC is: A) Quite acceptable and no effect on value; B) You'd be concerned about the coin in the future; or C) Any Verdigris is too much. Thanks!     |
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Pillar of the Community
Canada
1747 Posts |
Personally, I hate the stuff, I quarantine all coins with this disease. (from my hoard). Personally I would not buy a coin with it, because I know what is happening to the metal underneath.
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Rest in Peace
United States
4849 Posts |
This amount does not really bother me too much. You find it all the time in slabbed coins, often much worse than this. That being said, I would still give it an acetone bath and maybe toothpick treatment in the problem areas.
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Pillar of the Community
United States
1476 Posts |
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Pillar of the Community
United States
5825 Posts |
Verdigris is a chemical reaction.
It will continue unless you change the conditions around the coin.
And acetone won't help much removing verdigris.
Get that removing stuff (verd-i-care?)
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Pillar of the Community
United Kingdom
1351 Posts |
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Pillar of the Community
Canada
9150 Posts |
Quote:
Avoid the verdi. Why ? Nothing wrong with verdicare, it was developed by one of our CCF members and it works. |
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Pillar of the Community
United States
8515 Posts |
Oh that's very minor. I would use my VC and not give it a second thought.
Oregon coin geek.....*** GO BEAVS ! ! ! ***
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Pillar of the Community
United Kingdom
1351 Posts |
I wouldn't buy a green coin.
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Pillar of the Community
United States
2757 Posts |
my answer depends on the year of this coin, is it a more rare coin with few high grade examples? or is this a 1907 that is half the price because of the verdigris?
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Pillar of the Community
United States
3755 Posts |
That little bit is nothing. Hit it with VC and there ya go.
peter, were you saying avoid verdigris, or avoid verdi care? Not really clear there.
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Pillar of the Community
United States
2824 Posts |
I used that VerdiCare stuff on over 30 Indian heads so far with a toothpick and it works pretty good ones with worse then this.
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Pillar of the Community
United States
1757 Posts |
I developed a new copper coin cleaner in the lab that is 10X better than the original Coin Care or Vedi-Care. Contact me privately if interested - it has worked pretty well on green oxidation build-up areas assuming its just on the surface and not to deep into the coin's surface. It will not change to copper coin's surface color. Acetone dries out a coin's surface leaving it White, Xylol is good put not as good as side by side testing with JPL Coin Care. Its $30 for a 2 oz. bottle. This includes P&H. After 60 customers - no negative reports. The only patina change is when you remove 200 year old soil the coin will have cleaner look but no metal change occurs in terms of color and appearance.
John Lorenzo
United States
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Pillar of the Community
United States
8515 Posts |
Quote:
I developed a new copper coin cleaner in the lab that is 10X better than the original Coin Care or Vedi-Care. Contact me privately if interested. Can you post some results ? What do you call your coin cleaner ? Oregon coin geek.....*** GO BEAVS ! ! ! ***
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Pillar of the Community
United States
3755 Posts |
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Acetone dries out a coin's surface leaving it White, No, no it does not. Pure acetone evaporates and leaves NO residue at all. Nor does it alter the composition of the metal. Not exactly sure how drying the surface of the coin would have any effect beyond removing moisture. |
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Pillar of the Community
United States
1757 Posts |
I called my product JPL Coin Care. It was developed by myself - I sell it privately - most experienced copper collectors will tell you acetone dries out a coin's surface and at times leaves a mild white film which is why xylol is more of the GO TO material. After my Originial COIN CARE was expired I developed this product. I have mostly been selling it to experienced collectors of the C4/EAC organization.
I agree with the statement - "Nothing can really clean copper effectively." Until my product came out <BG>.
I am Chemist and have developed industrial cleaners ... there are other factors but these are private ... contact me privately. After 55 sales no one has requested there money back yet ... <BG>.
John Lorenzo
United States
Numismatist
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Replies: 16 / Views: 4,231 |
Posted 06/16/2014 5:29 pm
