Residue / toning on slabbed Mod Bullion Issue

What is this toning residue? Take a look at bottom part reverse on coin. Current Pcgs pop 397 /0. This 2017 PCGS MS69 Britannia 1 Oz Silver coin. Some on obv / slab front too.
I won it for $26 on eBay. For MV I say $40. The seller, a large bullion dealer uses stock photos. I Have seen this on 70 coins as well.
Any ideas as to cause. We’re these things sent in vinyl flips / reacted to heat-humidity?
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I see milk spot right under her chin for one. Bottom could be the milk like substance spreaded out. I been told if the description fails to mention milk spots you can send the coin back as not as described. I have a few coins with milk spots it really takes away the beauty and hurts the value. If you keep it and then sell it you will have to advertise the milk spot or you don't have too but many here said they would send it back regardless.
It’s shame tarnish so soon unless u toning admirer.
Dreded milk spots
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They think the cause is in the preparation of the planchets - not rinsing the cleaning agent off thoroughly. The RCM, U.S. Mint (on ASEs) and now, British Mint are having problems. It can take years to manifest, which is why many people won't buy high-grade bullion unless it has been in the slab for several years.
It does look like milk spot... there is one beneath the Queen's chin....Although I have not seen it manifest in this form before (spread out and on both sides). If I received a coin like this, I would return it....Cheers, RickO
Well that's a shame. Exposure to something before slabbed? Is it worth breaking it out to conserve and reslab? Peace Roy
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I'd return that with a SNAD, shame on the seller for using a stock photo for a crap coin.
I don't care about a milk spot on bullion (which is NOT the same as 'tarnish' or toning...) BUT if it's in a slab and you are collecting it (ie slabbed) and looking for a superior specimen, then NOPE. It goes back.
That's the most egregious use of a stock photo--hiding a well known problem coin behind one. Unless there is a profuse apology and remedy, this gets a big fat SNAD. After all, mistakes happen, it's how it's handled that's important. If the company doesn't respond appropriately then they aren't someone to buy from again--big name or no.
Sadly I've seen a lot of that on the newer Britannias.
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69s are bullion in moderns
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Agree milk spots but the bottom looks extreme. Someone from PCGS should answer if this is acceptable and disregarded prior to grade or is it considered and reason for 69.
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@jmlanzaf Good point about the 69s. Even so, I abhor stock photos, especially as they invariably favor the sellers. Perhaps my comments should be reserved for the 70s. I see the phrase stock photos and my upper lip curls.
@Kkathyl I would strongly suspect the milk spots showed up later. IIRC when they first became a 'thing' the grading companies basically had to say 'can't cover those as they are part of the planchet process and they show up waaayy after the fact'.
And, whatever that problem is, it appears the problem is spreading--used to be Eagles, then Maples, and now Britannias.
Ah the time honored milk spots. Common on British and Canadian releases. Supposedly Canada has fixed the problem, but time will tell. If you bought them for bullion it doesn't matter, but you didn't so you may want to try returning them. That could be a problem as they are certified and despite the spots they are still 69's. A 69 bullion coin is still bullion.
Does it bother anyone that that coin is slabbed backwards? HRH is the obverse. Just curious.
Most bullion dealers sell as is, no return. It's still bullion with the milk.
On eBay, there's no such thing as no return.
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Not necessarily.
For example: "The PCGS Guarantee does not apply to coins exhibiting environmental deterioration subsequent to PCGS grading and encapsulation. This deterioration may include, but is not limited to, spotting, hazing, PVC contamination, changes in color, and corrosion."
https://www.pcgs.com/guarantee
Makes it risky to buy modern graded bullion.
I've got 25 reverse-proof 2015 Canadian Maples; couldn't resist the "e=mc2" privy. I put 'em all in air-tite capsules... 3 years later, thankfully most are still pristine. In a few years maybe I'll break even. Lesson learned.
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Yikes !!!
Removing one of these high-quality bullion pieces from its original packaging exposes the surface to contaminants - in addition to any that were present when it was packaged at a mint. It's unfortunate, but until collectors demand investigation, clear explanations, and effective remediation, the stuff will continue and collectors will get burned.
@Smudge do they slab them all backwards? If so, why? In most circumstances I am bothered by backwards slabs too.
You will have to ask the tpgs's that.
Heck, I once got an order back and every holder was upside down!
This coin is slabbed with the reverse up. Many coins from around the world are slabbed this way, often because the only different design for the denominations is on the reverse. Additionally, some folks ask the TPGS to slab a coin backwards due to personal taste, beautiful toning, etc.
I'll open this can of worms again here. Take a look at the US Commemorative Series. over 50% of the coins have the purpose they were struck imaged as the reverse in the Red Book. One TPGS is presently going against this illogical "custom" and standardizing this series.
So here is a question I have had no luck at all solving. So milk spots are obviously a very prevalent issue effecting? affecting? the Silver Eagle's set. So far the most prevalent idea as to the cause is that it is some residue that has not been properly washed off the planchets from the mint. (I do not take credit for this idea it is just the one I have seen multiple people say). Yet I am also seeing more and more Franklin Half's with the same type of spotting, but not the Kennedy Half's. Wouldn't that in a sense shoot down the claim that it is a recent mint issue and not something else?
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Nothing new. It's been a problem for decades especially seen on SE, Franklins, Kennedy's, Washington quarters, Peace dollars. Milk spots lower eye appeal. I hate it when "milky-streaked" Peace dollars are graded as high as
(in their own mind).
MS-65 by dollar "experts"
Early in my resurrected collecting career I got caught up in the Silver Eagle set craze and made an effort to pick up a full set of MS69s. Once I had the set built through '04 or '05, I lost interest and but the set aside. Not a spot on any of them. A couple of years ago I pulled out the box and found about 1/3 were affected with milk spots. Too late to do anything now. Live and learn.
I recall your post on Commems and agree. There should be consistency not just in Commems, but all coins graded. I understand a customer wanting to show off the coin's best side and the tpgs wanting satisfied customers, but coins should be slabbed as they are. Obverse forward. Just my opinion
It would be nice if all coins were slabbed with the obverse up but we serve the collector. As for the commemoratives, nothing is going to change Century + traditions. Besides, if the Mint records show that (for example) the side of the City of Hudson half (the reason for the issue) plus the dates 1785-1935 is considered to be the REVERSE who can argue? Stick a meaningless ship with USA and half dollar as the obverse...LOL!
At least the Mint got some of the coins such as the Illinois Centennial issue correct.