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How does a Morgan dollar get a black spot?  
 

 
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 Posted 03/13/2018  12:50 pm Show Profile   Bookmark this topic Add Thattalldude to your friends list Get a Link to this Message
So I recently bought a 1881 Morgan dollar MS63 the coin looks amazing on the front but when you flip it over it has a black spot on the wreath, my main question is how does this happen? And why in just a little spot? Thanks in advance for yalls help, I'm kinda new so I don't know all the bells and whistles work yet. I’m just curious why does it just why does it make a spot in that area, how come it isn’t in a different area?
Edited by Thattalldude
03/13/2018 1:05 pm
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 Posted 03/13/2018  12:53 pm  Show Profile   Bookmark this reply Add SilverDollar2017 to your friends list Get a Link to this Reply
They are usually caused by oxidation. However, they can sometimes be environmental damage. Pictures would help.
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 Posted 03/13/2018  12:55 pm  Show Profile   Bookmark this reply Add MikeF to your friends list Get a Link to this Reply
It happens. I have a 93 CC that I've owned since I was a kid that has one of those blacks spots. It would be helpful if you provided a pic.
Hi, my name is MikeF and I'm a degenerate coin collector. I also like adventure, big trucks, long walks on the beach and the Kansas City Chiefs.
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 Posted 03/13/2018  1:30 pm  Show Profile   Bookmark this reply Add Slider23 to your friends list Get a Link to this Reply
The spot most likely was caused by contact with sulfur. It only takes something with sulfur making contact with the coin. Sulfur is found in things like paper, rubber bands, some foods, etc. If the coin was placed on a contaminate like a spec of paper with sulfur or something got on the coin with sulfur, the black spot could happen.
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 Posted 03/13/2018  1:53 pm  Show Profile   Bookmark this reply Add Zurie to your friends list Get a Link to this Reply
Possibly caused by previous long term storage in a 2x2 with a small hole in the Mylar at that spot.
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 Posted 03/13/2018  1:53 pm  Show Profile   Bookmark this reply Add moxking to your friends list Get a Link to this Reply
A single tiny bit of a contaminate. What that might have been is simply conjecture unless you discovered the coin and the contaminate together.
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 Posted 03/13/2018  2:09 pm  Show Profile   Check NumisRob's eBay Listings Bookmark this reply Add NumisRob to your friends list Get a Link to this Reply
I've got a circulated 1882-O Morgan with black spots on the reverse. It was the first US silver dollar I got - I was given it in 1976 by a schoolteacher from Texas who came over to England for an exchange year and worked with my Mom.

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 Posted 03/13/2018  2:30 pm  Show Profile   Bookmark this reply Add MikeF to your friends list Get a Link to this Reply

Quote:
Possibly caused by previous long term storage in a 2x2 with a small hole in the Mylar at that spot.




Come to think of it, I have a mint condition Washington quarter that had the same exact thing happened to it. The 2x2 had a small hole in it and the surface exposed to the hole started toning black. I wasn't actively collecting at the time but I transferred it to another 2x2 and within a couple months the black faded and gave way to red, blue and purple toning. Weird.
Hi, my name is MikeF and I'm a degenerate coin collector. I also like adventure, big trucks, long walks on the beach and the Kansas City Chiefs.
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