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 Replies: 9 / Views: 1,267 |
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New Member
Australia
18 Posts |
Hi any thoughts on the topic.
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New Member
 Australia
18 Posts |
Even if you put a coin in a protective case the moment it's struck. The oil in the metal at point of manufacture, would stop the coin from "toning".
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Pillar of the Community
United States
2001 Posts |
Toning can be considered a form of environmental damage, pleasing to some and not pleasing to others. It is what happens to a coin after being exposed to chemicals in the environment. Old time collectors used to dust their albums or folders with sulfur which over time toned coins. While some toning is artificial, others can take on natural toning simply from storage. There are many wonderful examples of proof coins sealed in mint cellophane with great toning and I dare say they were not exposed to salt water.
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Bedrock of the Community
United States
94367 Posts |
 to the CCF! |
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Pillar of the Community
United States
1316 Posts |
Lots of Morgan dollars toned while sitting in bank vault bags for 60-80 years, especially those that were up against the bag itself. These never came close to saltwater. All sorts of things can cause toning. - I've seen newly released ASE still in the original govt packaging already toned, must have had some fast acting residue on it. |
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Valued Member
United States
191 Posts |
Toning is caused by exposure to chemicals in the atmosphere. The coin does not have to be in seawater.
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Pillar of the Community
Australia
1039 Posts |
Quote:
Toning is caused by exposure to chemicals in the atmosphere. The coin does not have to be in seawater. Yes,also the container the Coin is stored in can affect Patina.Forget about toning in seawater,it can eat Copper coins,and Silver coins with impurities, away. I always thought Toning on Coins exposed to certain types of air was a urban myth but after purchasing a couple of bulk buys from Newcastle,NSW Oz.,old BHP Steelworks,it is a fact. Silver in particular were turning black,must be Sulphur or the like in the Atmosphere,glad I didn't live there to breathe it in. |
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New Member
Australia
18 Posts |
Toning is also caused by washing coins, and the amount of clearly cirrculated coins that are so clean it's impossible to think they haven't been washed. Toning occurs when water comes in contact with the oils on the surface of the coin. Not just saltwater, freshwater does it as well. That's why the coin in the bank vault bag touching the bag toned, more than the others. At some point that bag came in contact with water. Some rich collector got conned and to try and make the money back, they've managed to get the sheep follow.
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Forum Dad
 United States
24147 Posts |
BiggFredd, a long time member here that has passed, lived a block from a commercial glass manufacturer. He could put a silver coin on his window sill for a few weeks and have a wildly toned coin. Makes you wonder what the neighborhood breathing though right?
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New Member
Australia
18 Posts |
I live in greater Sydney. I was given some Penny's and smaller coins from the south pacific when I was 10. Now at 53 the coins don't have toning. For the last 20 years they've sat in a matchbox in a box in storage, before that they sat in the same matchbox in a drawer. The 4 of the 1964 Penny's haven't toned nor the 55 (no dot) hasn't toned either.
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Replies: 9 / Views: 1,267 |
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Posted 01/20/2022 06:12 am
