What storage method caused this toning?

As I've never seen another Vancouver with this kind of toning progression.
To Err Is Human.... To Collect Err's Is Just Too Much Darn Tootin Fun!
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As I've never seen another Vancouver with this kind of toning progression.
Comments
nice!
BHNC #203
I have know idea ... but I really like it!
Have you seen other types of coins with "this kind of toning progression"?
Mark Feld* of Heritage Auctions*Unless otherwise noted, my posts here represent my personal opinions.
Very pretty. And I belong to the Ricko fan club.
None come to mind as I type this.
That looks as if it had a dip in copper sulfate, then stored in a humid, warm environment. Either that or a soiled diaper....
Cheers, RickO
I just spit out my coffee 😆
Dead Cat Waltz Exonumia
"Coin collecting for outcasts..."
I don't have any idea, but I know I want it!
My OmniCoin Collection
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Tom, formerly in Albuquerque, NM.
This is nothing but a guess, but maybe cellophane? Wrinkles in the plastic film could account for the wavy nature of the toning.
Sean Reynolds
"Keep in mind that most of what passes as numismatic information is no more than tested opinion at best, and marketing blather at worst. However, I try to choose my words carefully, since I know that you guys are always watching." - Joe O'Connor
I’ve seen similar obverse color bands on the obverse of Morgan’s
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CoinsAreFun Toned Silver Eagle Proof Album
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Gallery Mint Museum, Ron Landis& Joe Rust, The beginnings of the Golden Dollar
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More CoinsAreFun Pictorials NGC
Are we suspecting AT here?
Kennedys are my quest...
it may have been stored in tissue paper inside of a small, manila envelope.
Fellas, leave the tight pants to the ladies. If I can count the coins in your pockets you better use them to call a tailor. Stay thirsty my friends......
Though more colorful than average, it does not look out of line with toning I would expect on a Vancouver.
That was the closest association that came to mind for me, as well.
Mark Feld* of Heritage Auctions*Unless otherwise noted, my posts here represent my personal opinions.
Ammo box under a Joshua tree in the Mojave Desert for several years.
I like the reverse more than the obverse. The obverse doesn’t look natural to me but again that’s just me. It may look different and more natural in hand.
When it looks like an oil slick that speaks to chemical aids to me but I am way more skeptical than the average toning fan
11.5$ Southern Dollars, The little “Big Easy” set
Do you see the three 'bubbles' in the left facing field, in front of the portrait, and also smaller ones in the right facing field? When you see this type of non-uniformity, in the surface color, it tells me that it is not natural and that someone played with it.
“I may not believe in myself but I believe in what I’m doing” ~Jimmy Page~
My Full Walker Registry Set:
https://www.ngccoin.com/registry/competitive-sets/16292/
They can do all kinds of things with toning these days. Has it any provenance? Or was it only recently, ahem, discovered?
Liberty: Parent of Science & Industry
I actually had that "oily" look with some walkers I had in an ammo can for a couple of decades.....I forgot all about them in a move. Unfortunately mine also had some sore of PVC type residue on them. The can had auto parts, nuts and bolts, etc before it was a walker box.
Mine would never have graded but some were pretty and nice, sans PVC crap.
bob
PS: for those that don't know I do live in the Mojave Desert!
I agree that the obv bubble shaped spots kinda look like air bubbles interfered with a chemical? coming into contact with the surface during exposure. IMO. Peace Roy
BST: endeavor1967, synchr, kliao, Outhaul, Donttellthewife, U1Chicago, ajaan, mCarney1173, SurfinHi, MWallace, Sandman70gt, Ricko, mustanggt, Pittstate03, Lazybones, Walkerguy21D, coinandcurrency242 , thebigeng, Collectorcoins, JimTyler, USMarine6, Elkevvo, Coll3ctor, Yorkshireman, CUKevin, ranshdow, Jzyskowski1, CoinHunter4, bennybravo, Centsearcher, braddick, Windycity, ZoidMeister, mirabela, JJM, RichURich
What if someone sneezed on the coin before it toned?
Yup, mucous would also do the trick. Peace Roy
BST: endeavor1967, synchr, kliao, Outhaul, Donttellthewife, U1Chicago, ajaan, mCarney1173, SurfinHi, MWallace, Sandman70gt, Ricko, mustanggt, Pittstate03, Lazybones, Walkerguy21D, coinandcurrency242 , thebigeng, Collectorcoins, JimTyler, USMarine6, Elkevvo, Coll3ctor, Yorkshireman, CUKevin, ranshdow, Jzyskowski1, CoinHunter4, bennybravo, Centsearcher, braddick, Windycity, ZoidMeister, mirabela, JJM, RichURich
While the obverse color pattern may be somewhat distinctive, the color palette and the chromium luster are very characteristic of originally toned Vancouvers.
The coin has been slabbed by PCGS at least three times. It currently resides in an MS67+ slab. In previous incarnations, it could be found in the following MS66+ slabs:
In the first slab pictured above, it was sold by Heritage in July, 2019 for about $ 2600.
In the second slab pictured above, it was sold by Heritage in Feb, 2020 for about $3200.
In an MS67+ slab, it is obviously more valuable. But, I suspect that the True Views are a bit "exuberant" and if we had the coin in hand, it would be clear that it is original and has not been messed with.