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Offline BowbenderTopic starter
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« on: May 27, 2013, 12:59:38 pm »
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I was fortunate enough to find a 1778 Massachusetts minted coin (copper) about the size of a large penny.
One side was in rough shape but the obverse was in good condition
When I first found it I could make out details and put it into a coin protector which is two pieces of cardboard with a hole in it and plastic over the holes thus sandwiching the coin .
All I did to prepare the find was to wash it in water, dabbed it dry then placed it between the two pieces of cardboard/plastic.
Looking at the coin recently it seems that the detail isn't as good as the day I found it.  Could be old age and poor eye sight .
I just want to make sure I am doing all I can to preserve the find as best as possible.
Any suggestions???


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Offline xavier
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« Reply #1 on: May 27, 2013, 05:42:42 pm »
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The copper should not degrade itself it could go green but the details should not fade away. I found an old (To our standards) 1942 South African coin it also happens to be red copper. The coin looked terrible when I found it so I gave it a good clean then kept it in my pocket for a month, now the tarnish has come back and it looks the way that I thin it should. I would not have done it this way with a coin of value, here is a before and after photo   

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Offline BowbenderTopic starter
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« Reply #2 on: May 27, 2013, 07:17:55 pm »
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Thanks for the insight, Xavier.
Like I said, "It could be old age and bad eyes.
I'm glad to hear that I didn't mess up a nice coin through neglect

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« Reply #3 on: May 27, 2013, 08:38:11 pm »
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Salt is a Coins Enemy.    Baking soda is a Salt of Calcium Yes Calcium is a Metal,  Calcium and Peroxide cleans them most well.   Just be sure to soak and clean again with Distilled Water.

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Offline BowbenderTopic starter
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« Reply #4 on: May 28, 2013, 08:35:39 am »
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Thanks. Homefire.
I was more interested in making sure that the coin didn't degenerate as it sat in the protector.
I heard that exposure to air, after being buried for some time will cause oxidation and the coin will degenerate.

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« Reply #5 on: May 28, 2013, 01:29:54 pm »
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Yes oxidation will degrade your coin but in your case there is non so nothing to worry about, and I know exactly what you mean about the eye sight going to the roses  Cry  sad really sad 

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« Reply #6 on: May 28, 2013, 04:25:27 pm »
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They say getting old is not for the faint hearted, besides I have it on good authority that we aren't going to make it out of this life alive.

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Offline xavier
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« Reply #7 on: May 29, 2013, 02:58:21 am »
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Quote:Posted by Bowbender
besides I have it on good authority that we aren't going to make it out of this life alive.

LOL I guess you do have a point but I'd be willing to give just about anything to have my good young man vision back and perhaps some day they will be able to do just that with DNA boy am I going off topic. I just realized that you did not post a photo of your coin so how about it? 

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« Reply #8 on: May 29, 2013, 03:45:10 am »
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Quote:Posted by xavier
you did not post a photo of your coin so how about it?

Good call X
i would like to see that coin.
Quote:Posted by Bowbender
could be old age and bad eyes

I am thinking of a USB microscope up to 800x to solve the problem. There is one on eBay that is going for $10.00.ooops not quite .plus $30.00 delivery.

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« Reply #9 on: May 29, 2013, 01:52:00 pm »
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Ok! Now I under stand.  

Here is What I would Do if That was a Problem that  Concerned me.  Boil the Coin in Distilled water for a few hours In a cloth basket to keep all sides the same.    Dump out the Water and do Again.  Two Hours.  That will   Pull out any Sulfides and Salts it already had going on  the surface..

This was nothing you did but the Ground it was found in.


After Drying under a Lamp, Using White Cotton Gloves place it in one of these.

Low Sulfur there quite good.

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