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Rainbow Mercury Dime NGC Slab MS-67, Really Uncirculated?

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 Posted 01/21/2025  4:02 pm  Show Profile   Bookmark this reply Add Marv65 to your friends list
I had trouble defining "circulation wear" from "Die wear" at first too but it takes time to learn the difference.
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 Posted 01/21/2025  6:37 pm  Show Profile   Check Pacificoin's eBay Listings Bookmark this reply Add Pacificoin to your friends list
Aside from a slightly weak strike , the coin
is in my opinion , spectacular.
Wonderful colour , great eye appeal .
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Australia
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 Posted 01/21/2025  7:18 pm  Show Profile   Bookmark this reply Add sel_69l to your friends list
Always difficult to assess toned potentially very high grade coins above MS-65, from screen shots.
If you are confident of very accurate grading within your specialty, you should be grading all of your own coins, either selling or buying and not relying on the slab grade.

As the third party graders do, examine hand held, under ideal light conditions, with a 10x loupe, with coins that are potentially MS-65 or above.
Rely on slab grading if you are not confident enough to grade at this level.

Problem with toning (especially if toning is blotchy), is that it can hide very minor nicks and scratches, that may not be visible with on screen pics. Another problem with toning is that is is really a minor form of surface corrosion, which is not present with blast white full luster coins in high MS grades.

It is for this reason that I prefer non toned coins and will always choose them in the higher grades, if the occasion presents itself.
After all, that is how they appeared fresh from the coining press.
Edited by sel_69l
01/21/2025 8:09 pm
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 Posted 01/21/2025  7:36 pm  Show Profile   Bookmark this reply Add echidna to your friends list
AT IMO
Watch your top knot
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 Posted 01/22/2025  03:09 am  Show Profile   Bookmark this reply Add Maine Member to your friends list
Agree with sel 691. The toning often hides minor abrasions and there may be corrosion issues as well.
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 Posted 01/22/2025  12:12 pm  Show Profile   Bookmark this reply Add jacrispies to your friends list
I believe it is the combination of toning pattern and weak strike that you are mistaking as wear. If you consider luster when grading, you would see the Mercury dime matches the MS-67 much more than the AU-50. Luster is extremely important to consider when grading.

Silver can use multiple elements to assist the toning process, for example sulfuric material and air circulation. When a coin is housed in a paper flip, the paper touches the high points of the design. This environment allows the fields and other design elements that are exposed to air to tone differently than the high points that are directly contacting the paper. I suppose that is the case for the OP dime.
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 Posted 01/22/2025  1:43 pm  Show Profile   Bookmark this reply Add Jaobler to your friends list
I'd like to trust major TPGs unconditionally but based on years of experience that just isn't the case. I could accept that this coin is uncirculated although I'd have to look for complete, uninterrupted luster across fields and devices before I'd be really confident.

It's my understanding that strike quality doesn't officially affect grade until your reach gem levels, i.e. MS-65 and above. I don't care how attractive the toning is, for a coin with this much strike deficiency the maximum possible grade should be MS-65. The grader can throw a star or plus on the slab if they really like the eye appeal.

Maybe I'm just behind the times.....
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 Posted 01/22/2025  2:50 pm  Show Profile   Check Brandmeister's eBay Listings Bookmark this reply Add Brandmeister to your friends list
The consensus seems to be that this is a weak strike but otherwise a mint state coin.

Since people have mentioned luster often in this conversation, I have a follow up question. Is it even possible to see luster on a coin this heavily toned? As Sel points out, toning is essentially very shallow corrosion. Wouldn't that dull the luster or occlude it entirely?
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 Posted 01/22/2025  3:51 pm  Show Profile   Bookmark this reply Add jacrispies to your friends list

Quote:
Is it even possible to see luster on a coin this heavily toned?


You can clearly see luster at 9 and 3 O'Clock on the obverse. Light toning like this, luster can be slightly dimmed but still very clear.


Quote:
As Sel points out, toning is essentially very shallow corrosion. Wouldn't that dull the luster or occlude it entirely?


Luster completely disappears in the deep terminal stage of toning when the coin is visibly corroded. If the coin has hazy toning, the luster can be dimmed as well. But once dipped, the luster is revealed.
Suffering from bust half fever.
Want to learn how to attribute early half dollars by die variety? Click Here: http://goccf.com/t/434955
Shoot me a PM if you are looking to sell bust halves.
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 Posted 01/22/2025  4:04 pm  Show Profile   Bookmark this reply Add macmercury to your friends list
I like toned coins, but not these type and difficult to tell from just pictures, which is part of the reason why buyer entrust 3rd party graders help in determine its states. A similar coin I have from the one selling on ebay helps me determined the level of luster, and the brightness of luster that comes out on the surface itself.

Dull toning where the surface have a thin coating that hid the actual luster is something I avoid.
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 Posted 01/23/2025  01:41 am  Show Profile   Bookmark this reply Add TinyRetreat to your friends list
For my eyes, the toning DOES inhibit my ability to interpret field luster ... as a "toned coin guy", I love it. For the price due to the grade ? not a buyer.
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 Posted 01/23/2025  2:18 pm  Show Profile   Bookmark this reply Add IndianGoldEagle to your friends list
Looks MS but can't grade a toned coin like that if not in hand.
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 Posted 01/23/2025  5:41 pm  Show Profile   Bookmark this reply Add paralyse to your friends list
Yes, there can be luster under toning.
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 Posted 01/25/2025  09:20 am  Show Profile   Bookmark this reply Add panzaldi to your friends list
TPG's love rainbow toning especially if its evenly distributed on both sides. they will bump these a grade every day.
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 Posted 01/26/2025  12:17 am  Show Profile   Check Brandmeister's eBay Listings Bookmark this reply Add Brandmeister to your friends list
Ok, thanks for the education guys. =)
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