Oh my, terrible PVC.
Maywood
Posts: 2,753 ✭✭✭✭✭
I'm assuming this is PVC and it has to be the worst example I have ever seen. Further, I assume the coin cannot be salvaged because it looks so advanced that it's probably etched into the surface. Am I seeing things right or is it something else??
Maywood
--- link to Heritage. https://coins.ha.com/itm/commemorative-silver/1936-50c-elgin-ms67-pcgs-housed-in-a-generation-31-green-label-holder-mintage-20-015/a/60453-51163.s?ic4=MyRecommendationsItem-071515#
3
Comments
PVC (polyvinyl chloride) can cause discoloration on coins, appearing as milky, greenish, or grey streaks or blotches.
This looks blue. Maybe just the images make it look that colour.
I would for sure not buy the coin no matter PVC or not.
Coin should be rescued from the blue scourge. IMHO. Good luck. Peace Roy
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I would also assume it’s PVC on that one.
Advanced verdigris?
30+ years coin shop experience (ret.) Coins, bullion, currency, scrap & interesting folks. Loved every minute!
Well it definitely doesn't have a CAC sticker
but if it did it would be green
I saw some recently that was so bad that It looked literally wet in the packaging, it was in the PVC packaging in one of those old books… It was just downright disgusting!
Thankfully, the customer kept it.
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yeah that looks really bad.
@MFeld any thoughts?
Collector, occasional seller
I’m going to check on this, in-hand.
Mark Feld* of Heritage Auctions*Unless otherwise noted, my posts here represent my personal opinions.
Is this another one, also currently at HA?
Link: https://coins.ha.com/itm/commemorative-silver/1937-d-50c-boone-ms67-pcgs-pcgs-population-65-5-mintage-2-506/a/60453-51078.s?ic16=ViewItem-Auction-Open-AlsoViewed-Thumbnail-081514&table=BrowseAlsoViewed-012417
Edit for punctuation.
Is that PVC or dip residue that wasn't completely rinsed?
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That one and others are being checked.
Mark Feld* of Heritage Auctions*Unless otherwise noted, my posts here represent my personal opinions.
This Boone has an interesting liquid-splash effect on the upper reverse. Could this be resurrected dip residue that was not washed off properly? That would explain how they got into holders in the first place.
Here is another that is covered front and back. The color is more defined as greenish and appears to be more like PVC.
https://coins.ha.com/itm/commemorative-silver/1937-d-50c-boone-ms66-pcgs-mintage-2-506/a/60453-51077.s?ic16=ViewItem-BrowseTabs-Auction-Open-ThisAuction-120115
Either way, the descriptions should probably be updated for accuracy.
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Looks like the same issue a recently purchased Kennedy half I own is inflicted with:
peacockcoins
To be honest, the thought of "dip residue" never entered my mind.
When I first dipped any coin I would watch for any evidence of an improper/incomplete rinse, generally from 7-10 days on a virgin cloth diaper, covered and flipped every day. Until I perfected my process any rinse left on a coin manifested itself as a light gold-brown haze, never anything like this.
^
I agree. It is easy to default to the 'dip-residue' theory, yet honestly- those coins look different than the ones featured here, as Maywood explains.
Unfortunately there is something a bit more sinister going on and likely cannot be repaired to an acceptable degree.
(I'd love to be wrong.)
peacockcoins
I bought a coin from a very well known ebay seller two years ago and when it arrived ( it was a ms67 walker) it had that similar color and I returned it and they banned me!!!! It didn't show in the ebay picture......
Strange that the someone didn't notice that and say something before hand - at least the photographer.
"When they can't find anything wrong with you, they create it!"
It looks like both Heritage coins have been pulled
Mark?
Mike
My Indians
Dansco Set
It appears so. I was out of the office today, so got in touch with some of my colleagues. And last I’d heard, the two coins mentioned in this thread (as well as some others in the sale) were going to be examined.
Mark Feld* of Heritage Auctions*Unless otherwise noted, my posts here represent my personal opinions.
Dip residue is not green.
I thought the TPGS's don't slab coins with PVC.
@4Redisin said: I thought the TPGS's don't slab coins with PVC.
They don't if it's apparent or visible at the time of encapsulation. PVC is clear when it transfers from the source(a flip or other holder) onto the coin and becomes visible with the passage of time. Since the OP coin was encapsulated by PCGS sometime in the early 1990's, approximately 30 years ago, there's no telling when it became visible but it's reasonable to assume that it was clearly present at the time it was consigned to Heritage.
Here is an example of dip residue. - 9:00 & 12:00
Was blast white when I bought it.
As one of the most hard-working numismatists at HA we can always count on Mark Feld to do the right thing. Looking forward to the updates on these coins.
Thank you for your very kind comment. I was informed that the two lots posted to this thread were pulled from the sale, as were a small number of others, due to similar issues.
Mark Feld* of Heritage Auctions*Unless otherwise noted, my posts here represent my personal opinions.
I thought PVC is green not blue. > @MFeld said:
Is it PVC in your opinion? Or something else?
I didn’t view the coins. As after I reported them to a colleague when I was out of the office yesterday, they were pulled from the sale before I returned this morning. That said, based on the images, my guess is PVC.
Mark Feld* of Heritage Auctions*Unless otherwise noted, my posts here represent my personal opinions.
I’m aware that dip residue can produce major color changes inside the holder even if not visible when slabbed. But wouldn’t the PVC have been visible to the graders? I didn’t think PVC could turn that dramatically in a holder.
You may not be able to see PVC in it's early stage but it's look can change over just a short time. Just a change in holder can speed up the stages PVC goes thru.
Interesting... I initially thought PVC but second guessed myself because the color seemed more blue-tinged when I zoomed in on the image... I'm on an old Samsung Galaxy if that matters.
Another question: Are certain storage conditions (like high humidity, larger temperature fluctuations, etc.) more conducive to making the coin turn in the holder? Thanks...
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Sadly, yes. Some conditions that allow for poor storage can exasperate a coin turning, so to speak, in the holder.
peacockcoins
That 1968 Quarter looks puttied with that heavy chalky coating.
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If the commems are going to be rescued...there goes the OGH. This is one of the reasons I was recommending reuse of the old labels and possibly gaskets (maybe not in this case, possible recontamination).
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Maybe this is a silly question, but does anyone screen these coins going through a major auction house or do they just move through like cattle?
EAC 6024
OP Coin:
For sure gone bad in the holder. It’s ruined. Conservation possible?
Definitely PVC damage. Time takes its toll.
Move them quickly b4 they go bad in the holder. Dip residue can show up quickly.
And there you have it.
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Was thinking of using as my dealer motto "Hurry up and buy my coins.......before they change color on me.......again."
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