Log in or Sign up
Coin Talk
Home
Forums
>
Coin Forums
>
Coin Chat
>
1907 barber quarter corrosion or toning?
>
Reply to Thread
Message:
<p>[QUOTE="John Burgess, post: 4877514, member: 105098"]holy smokes! This isn't "toned dark", it's at the far extreme of toning which is detrimental layer of oxide when its this dark and not refracting light or letting luster through.</p><p>The dark black layer has certainly damaged the luster of the coins and if removed the coin will be dull and lifeless, due to micro pitting, the next step would be heavier pitting like on the first coin and some of the silver oxide flaking away like on the 1900.</p><p><br /></p><p>This is what I meant by "terminal toning", when the toning gets so thick it become a matte color of brown to black and flat, it's at the point of not protecting the surface of the coin anymore and instead damaging it, and eating away at the silver building up more layers of oxide. it should have been mitigated decades ago on both examples. I don't think any TPG could straight grade with or without cleaning at this point either of them, I'm sorry. </p><p><br /></p><p>if you can't see luster through the toning and it's not reflecting much, it's very likely beyond salvaging and would not straight grade with a TPG, they would call it "details, environmental damage", even the 1907. Conservation wouldn't help either, it's been there too long on the coin, it would still be a details coin environmental damage, but at least it would stop it.</p><p><br /></p><p>Really sorry, this level of toning in itself is the sign of corrosion, the coin will not get straight graded no matter what you do with it.</p><p><br /></p><p>I could be wrong, I've honestly never seen something this thick and dark, but everything I know tells me it's a lost cause and has been for a few decades now.[/QUOTE]</p><p><br /></p>
[QUOTE="John Burgess, post: 4877514, member: 105098"]holy smokes! This isn't "toned dark", it's at the far extreme of toning which is detrimental layer of oxide when its this dark and not refracting light or letting luster through. The dark black layer has certainly damaged the luster of the coins and if removed the coin will be dull and lifeless, due to micro pitting, the next step would be heavier pitting like on the first coin and some of the silver oxide flaking away like on the 1900. This is what I meant by "terminal toning", when the toning gets so thick it become a matte color of brown to black and flat, it's at the point of not protecting the surface of the coin anymore and instead damaging it, and eating away at the silver building up more layers of oxide. it should have been mitigated decades ago on both examples. I don't think any TPG could straight grade with or without cleaning at this point either of them, I'm sorry. if you can't see luster through the toning and it's not reflecting much, it's very likely beyond salvaging and would not straight grade with a TPG, they would call it "details, environmental damage", even the 1907. Conservation wouldn't help either, it's been there too long on the coin, it would still be a details coin environmental damage, but at least it would stop it. Really sorry, this level of toning in itself is the sign of corrosion, the coin will not get straight graded no matter what you do with it. I could be wrong, I've honestly never seen something this thick and dark, but everything I know tells me it's a lost cause and has been for a few decades now.[/QUOTE]
Your name or email address:
Do you already have an account?
No, create an account now.
Yes, my password is:
Forgot your password?
Stay logged in
Coin Talk
Home
Forums
>
Coin Forums
>
Coin Chat
>
1907 barber quarter corrosion or toning?
>
Home
Home
Quick Links
Search Forums
Recent Activity
Recent Posts
Forums
Forums
Quick Links
Search Forums
Recent Posts
Competitions
Competitions
Quick Links
Competition Index
Rules, Terms & Conditions
Gallery
Gallery
Quick Links
Search Media
New Media
Showcase
Showcase
Quick Links
Search Items
Most Active Members
New Items
Directory
Directory
Quick Links
Directory Home
New Listings
Members
Members
Quick Links
Notable Members
Current Visitors
Recent Activity
New Profile Posts
Sponsors
Menu
Search
Search titles only
Posted by Member:
Separate names with a comma.
Newer Than:
Search this thread only
Search this forum only
Display results as threads
Useful Searches
Recent Posts
More...