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 Replies: 10 / Views: 1,915 |
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Valued Member
United States
216 Posts |
I purchased an uncirculated 1909 VDB cent from an ebay seller because it had nice red coloring. I sent it to a Third Party Grader (NGC), which said that coin had been colored. What is the best way of determining if a coin, especially non-clad coins (e.g., Lincoln pennies and recent small dollars (Sacagawea, Presidential, etc.)), have been artificially colored, even after I receive it? Thank you in advance. Edited by Hidalgo
07/17/2020 8:41 pm
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Moderator
 United States
56855 Posts |
If I remember right,the TPG's use a "sniffer machine"...you could buy one of those. Second option is many years of study. 3rd option,post pics here on CCF. John1  |
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Pillar of the Community
United Kingdom
2133 Posts |
What is a "sniffer machine"?
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Pillar of the Community
5464 Posts |
Quote:
What Is The Best Way To Determine If A Coin Has Been Artificially Colored?  with John1. Post it here first and ask. Edited by USSID18
07/17/2020 7:55 pm
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Bedrock of the Community
United States
17884 Posts |
Quote:
What is the best way of determining if a coin, especially silvery non-clad coins (e.g., Lincoln pennies and recent small dollars (Sacagawea, Presidential, etc.)), have been artificially colored, Years of experience. |
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Pillar of the Community
United States
7276 Posts |
Color is sometimes easy to hide, I like red copper coins but found that many are treated. I ended up getting brown MS/AU coins as the color is natural, the price is less and I like brown coins.
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Pillar of the Community
United States
1373 Posts |
When a seller on ebay has a few dozen 'toned' coins, they are definitely 'artificial' toned. I've seen some dealers at coin shows with a whole table full of them. I just snicker and walk on by. |
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Pillar of the Community
5464 Posts |
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Moderator
United States
56855 Posts |
Quote:
What is a "sniffer machine"? It is a device that detects certain chemicals on coins,like cleaners and re-toners. John1 |
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Pillar of the Community
Australia
852 Posts |
The coin sniffer, is it accurate and can it tell the difference between chemicals applied by the scurrilous and similar chemicals that might occur in the air of mining/smelting towns. Also do the residual chemicals from the artificial toning eventually evaporate or change (degrade, oxidize etc) such that after a few (many?) years the sniffer won't detect them?
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Pillar of the Community
Canada
857 Posts |
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.I would say this guy mess-produces them for sure!! I'm both disappointed and surprised that some of those straight graded. |
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Replies: 10 / Views: 1,915 |
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Posted 07/17/2020 7:13 pm
