Do silver coins tone or corrode in the holder? posted by Yankeejose

[CSJournals-migration]

If a certified coin is toned in the holder- was that the way it looked when it was graded- how would one know?

 

I bought my first MS Morgan dollar for my 20th century type set. It is a common date 1900 O- NGC MS 64. There is small dark spot on the reverse that is almost black. The rest of the coin has some light red-brown toning just around the rim, but nothing like this. I saw this spot in the auction and thought it might have been on the holder- I really did not know what it was. I got the coin lower than FMV -$75 out the door. Now I am thinking this spot is why I got it cheap. I see a lot Morgan collectors out there- have you ever come across something like this? Could this have happened after if it was graded or was it graded that way? I hope that the picture will show enough detail to form an opinion. Thanks! Happy Collecting!

 

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[mt1missile-migration]

It may be a carbon spot or even where the person putting it in the slab got something on the coin in the process. It has been my experience that coins in slabs can tone but at slower rates than those not slabbed.

[coinsbygary]

I think that spot was there when it went in the holder. However, I do have a modern coin with a lighter, yet similar spot that had to go on it during the process because it went from the mint packaging straight to the holder. The toning around the rim appears to be album toning as the coin reacts to the paper in the album.

Gary

 

[Six Mile Rick]

I would guess that the spot was there when graded. It is a carbon deposit in the silver. When coins are placed in albums, the albums deteriorate over time and create a gas that adheres to the top layer of the coin. That gas looks to have collected on the carbon spot also but a little thicker as it is the same color just richer. It is a swell buy for $75.

 

Rick