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Peculiar Toning / Gold Tint On Coin Obverse From Silver Proof Sets

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 Posted 07/10/2018  10:23 pm  Show Profile   Bookmark this reply Add Redzapsid to your friends list
I would suspect some silver polish and rubbing would remove it but would damage the coin.
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 Posted 07/11/2018  8:42 pm  Show Profile   Bookmark this reply Add loonielewy to your friends list
to CCF.

You seem to have the sides of coins mixed up. The "heads" side is the obverse, the "tails" side is the reverse. Your coins are toned on the reverse side. I have seen it too.
This makes the light theory stand right up and say "it was me". This is the side exposed to light almost all of the time due to the leather sleeve they come in. I don't think it is from the plastic case itself, or both sides would show the same condition. But, what about a reaction with the light in the plastic itself, only effecting the side exposed?
You say you have seen it on a 2017 set, this means it doesn't take very long in the right conditions. You also say you dipped them. . So are you good for an experiment maybe? . Can you put the 2017 set back into the same conditions, only flip the inner case to expose the obverse side to the same lighting? Just wondering what would happen to the fresh side. I think you may get the golden toning on this side too. It's not unattractive, but it just doesn't seem natural, yet. It will probably grow on me.
It would be to figure out whats going on here.
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 Posted 07/11/2018  10:37 pm  Show Profile   Bookmark this reply Add Dorado to your friends list
To the Forum.
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 Posted 07/11/2018  10:48 pm  Show Profile   Bookmark this reply Add canadacollect to your friends list
Thanks for the input so far.Okicoiner can you give me an example of the proper stapling method?

Loonielewy...thanks for clarification on the obverse/reverse. Since the tails side is always frontward in the cases, I assumed it was the obverse. As for the experimenting, I would try it on the 2017 10c and 5c since there not worth much.
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 Posted 07/11/2018  11:02 pm  Show Profile   Bookmark this reply Add robmck1967 to your friends list
I would invest $10 and get a stapler that staples flat to begin with.i got mine at staples.
Peculiar-Toning-/-Gold-Tint-On-Coin-Obverse-From-Silver-Proof-Sets
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 Posted 07/11/2018  11:18 pm  Show Profile   Bookmark this reply Add purelywasted to your friends list
I have seen it on late 90's early 2000's sets, I used to break those sets apart and sell as individuals, I don't think I have any more examples of them left (breakup price and acquisition cost became too close), but it is definitely not a a relatively recent issue. Not sure on cause and I remember it being frequent on only one side of the coin.
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 Posted 07/12/2018  05:33 am  Show Profile   Bookmark this reply Add okiecoiner to your friends list
You can just use a small set of pliers (preferably flat-nosed, non-grooved) and just crimp them down flat.
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 Posted 07/12/2018  12:16 pm  Show Profile   Bookmark this reply Add jbuck to your friends list

Quote:
You can just use a small set of pliers (preferably flat-nosed, non-grooved) and just crimp them down flat.
This is what I do and works just fine for me with the smaller volume of holders I am doing.

That being said, If I did a lot more holders I might feel the need to invest in a better stapler.
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 Posted 07/13/2018  06:36 am  Show Profile   Bookmark this reply Add loonielewy to your friends list

Quote:
As for the experimenting, I would try it on the 2017 10c and 5c since there not worth much.


Good stuff. Let us know in a year or so how it went..
"We are poor little lambs...who have lost our way...Baa...Baa...Baa"

In memory of those members who left us too soon...
In memory of Tootallious March 31, 1964 - April 15, 2020
In memory of crazyb0 July 27 2020. RIP.
In memory of T-BOP Oct. 12, 1949 - Jan. 19, 2024
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 Posted 07/15/2018  10:21 pm  Show Profile   Bookmark this reply Add Canacoins to your friends list
Any chance these have been lacquered?
Edited by Canacoins
07/15/2018 10:21 pm
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 Posted 07/16/2018  11:23 am  Show Profile   Bookmark this reply Add ace_ftw to your friends list
sorry to be the sober second thoughts on this, but our memories are being boiled by the heat these days? I can easily count 2 other threads about the exact same thing, one where the coin was sent into 3rd party grading.

this is only toning.
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 Posted 07/16/2018  8:41 pm  Show Profile   Bookmark this reply Add Redzapsid to your friends list
Ace_ftw,

I think in all 3 (or more) threads, toning was to blame by most who posted. I don't think anyone is debating that.
The question is why and how these coins are turning goldish in colour so quickly? And consistently?
I've held several coins at Canada post locations with the same toning that are no where near old enough to have such a drastic change in colour under normal circumstances.
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 Posted 07/16/2018  9:11 pm  Show Profile   Bookmark this reply Add canadacollect to your friends list
Another question is why does this type of toning not come off by dipping it in a silver cleaning solution?
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 Posted 07/16/2018  9:41 pm  Show Profile   Bookmark this reply Add loonielewy to your friends list

Quote:
no where near old enough to have such a drastic change in colour under normal circumstances.


. Normal is the key word. Abnormal conditions caused this, or more sets would show the same, but what were they? Any chemists out there have an opinion?

Just off the cuff, what about different types of lighting? Incandescent, fluorescent, LED, halogen, metal halides, neon, etc... or even a combo of 2 or more. . Something is going on to speed up the process.
"We are poor little lambs...who have lost our way...Baa...Baa...Baa"

In memory of those members who left us too soon...
In memory of Tootallious March 31, 1964 - April 15, 2020
In memory of crazyb0 July 27 2020. RIP.
In memory of T-BOP Oct. 12, 1949 - Jan. 19, 2024
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 Posted 07/16/2018  9:50 pm  Show Profile   Bookmark this reply Add loonielewy to your friends list

Quote:
Another question is why does this type of toning not come off by dipping it in a silver cleaning solution?


Your right. If it doesn't come off, then can it be toning? Or has it become "staining"? Or do we need to invent a new dip? .
"We are poor little lambs...who have lost our way...Baa...Baa...Baa"

In memory of those members who left us too soon...
In memory of Tootallious March 31, 1964 - April 15, 2020
In memory of crazyb0 July 27 2020. RIP.
In memory of T-BOP Oct. 12, 1949 - Jan. 19, 2024
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