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 Replies: 9 / Views: 155 |
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Pillar of the Community
United States
3118 Posts |
I pulled my Eisenhower dollars out from storage today as I haven't looked at them in a couple of years. All my coins are sitting in PCGS style slabs and then into a plastic bag for storage. The first picture shows what I mean by that. When they were put into this arrangement none of them had toning. I looked at them today and the one coin below is a sample of what some of them look like now. Any ideas? I don't mind the toning so much as I am wondering what caused it.    Edited by srs77
Today 7H 36M ago
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Pillar of the Community
 United States
6492 Posts |
Well, it's definitely attractive. The toning aficionados will approve.
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Pillar of the Community
United States
1080 Posts |
I'm jealous. Been waiting forever for that to happen to mine.
In fact I just ran to my Dansco stack and pulled out my Eisenhower BU & Proof set that have been on the shelf for about 15 year's to have a look.
Sadly only about 4 or 5 of mine have that golden toniing that I find very attractive.
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Bedrock of the Community
United States
18654 Posts |
TPG's love that kind of toning and will bump the coins grade for it.
Rainbow toning on silver coins is caused by chemical reactions between silver and environmental elements, particularly sulfur and oxygen, which create thin oxide layers that refract light into colorful patterns. humidity and lighting play a role in it as well as how a coin is stored
i'd say the one presented here would be MS65
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Valued Member
United States
468 Posts |
The cause may be the plastic bags intended to preserve the coins.
Plastic food storage bags can outgas chemicals like plasticizers, potentially reacting with the coins' surfaces.
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Moderator
 United States
188052 Posts |
The toning is attractive, in my humble opinion.
Keep in mind that these slabs are not air tight. The plastic bags are not air tight. Air will migrate in and out in over long periods of time.
Where did you store them?
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Pillar of the Community
 United States
3118 Posts |
Thanks everybody. I agree the toning is very attractive. Better in hand than in my photos. JBuck, I had them stored in a cabinet with humidity controlled (supposedly) atmosphere. I'll post some more pictures of other coins. Some of them looked remarkable when I took them all out. I had Ike's, presidential and Sacagawea dollars along with Anthony dollars. |
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Moderator
United States
188052 Posts |
I suspect the cabinet materials contributed to the toning.
Cooking and smoking are other factors to consider, if those activities apply to the location.
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Bedrock of the Community
United States
19140 Posts |
Were these pieces originally pulled from uncirculated mint sets?
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Pillar of the Community
United States
3118 Posts |
Quote:
Were these pieces originally pulled from uncirculated mint sets? A few in my collection have been but 95% from bank or other places. |
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Replies: 9 / Views: 155 |
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Posted Today 7H 10M ago
