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 Replies: 45 / Views: 31,483 |
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New Member
 United States
41 Posts |
photo off the coin   |
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Pillar of the Community
United States
958 Posts |
Its not the same coin , yours scratches off.
Those coins are copper from the inside out.
it does not rub off
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Locked
822 Posts |
Quote:
Nickle bolied in phosphoric acid ( vinager )at 550 degree How, exactly, did you do that? |
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Pillar of the Community
United States
1534 Posts |
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jfit, nice looking nickel..if I were you I would go back to Biokemist's post and pretty much ignore anything after that.You'll see why after you've been here a bit.  Edited by wheatguy
01/05/2011 9:39 pm
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Pillar of the Community
United States
958 Posts |
scubu , take a metal pot with vinager put the nickle in the oven set it at 550 degree leave it a hour thats how that copper Buffalo nickle was created in my firts pic I was boiling to restore faster and wanted to see what high heat would do. My next exp will be just be a nickle in boiling water , this way no change of luster wil be lost on the surface The OP His nickle is not anealed from heat . But what he claims is " copper powder dust " on the surface of the coin baked in. when a planchet is anealed the coin actually changes color, not copper dust on the coin. but the copper actualy comes out of the coin , not just on the surface ether His scratches right off and has been scratched off ,but when you look at the pics of TPG graded anealed planchets you can see its not on the surface but within the coin |
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Pillar of the Community
United States
958 Posts |
Its nothing personal against the OP . Its only by annealing ,plating and etching that I have seen first hand by messing around with Buffalo nickles to see ways of restoring the dates that I have seen the copper changing color with in the coin. It does not scratch off. Ether way , if a coin is anealed before or after the minting the copper changes from within the coins structure its a reaction with the heat . The OP coin you can see through the copper in some places and see where contact has scratched/removed the copper color off the surface. |
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Locked
822 Posts |
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take a metal pot with vinager
put the nickle in the oven set it at 550 degree leave it a hour FYI, you didn't boil it at 550. Boiling liquids are never hotter than their boiling point unless pressure is applied. The air inside the oven may have been 550, but the vinegar was not, it was around 210-215 same as it would be on top of the stove. |
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Pillar of the Community
United States
958 Posts |
The METAL POT gets to 550 degree, the nickle is in contact with the metal pot conducting heat
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Locked
822 Posts |
Don't see how with the liquid constantly drawing heat from the pot and better than half the surface area of the nickel.
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Bedrock of the Community
United States
19964 Posts |
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The METAL POT gets to 550 degree, the nickle is in contact with the metal pot conducting heat
And the water in the vinegar keeps the pot temperature at about 212°F regardless. Scubu is exactly correct. Lincoln Cent Lover!VERDI-CARE™ INVENTOR https://verdi.care/
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Pillar of the Community
United States
958 Posts |
Well the nickles dont aneal at 250-350-400- 0nly at 500 above
So the heat is being held in the nickle through metal to metal contact for the reaction to occur
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Pillar of the Community
United States
958 Posts |
they only aneal on the side incontact with the metal pot,
if you want to aneal both sides you have to flip the coin over
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Bedrock of the Community
United States
62064 Posts |
All coins annealed remain that way. They don't temper them again.
Both sides of the coin would be affected equally by heating the coin. No need to flip it over.
The only sure way to tell if the coin was affected is to find one in a OBW roll. What do people do with tampered coins?
Spend them. Others find them and think they have found something. It happens.
Edited by coop
01/06/2011 10:47 am
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Pillar of the Community
United States
958 Posts |
coop , people have posted TPG coins that are effected on one side but not the other ( copper one side nickle the other) could be due to oxygen exposure on one side of the coin |
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Pillar of the Community
United States
958 Posts |
my only problem with the OP coin is that when you look at it the copper looks to cover only the surface,
as if it was done after minting , chemical,heat ,plate what ever
heat aneals and produces the copper color with in the coin.
chemicals or plating cuases it only onthe surface
it shows places where the copper has come off its very eazy to see
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Replies: 45 / Views: 31,483 |
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Posted 01/05/2011 9:17 pm
