1837 LM-5 Capped Bust half dime in PCGS 63 Prooflike makes a tenfold gain

This coin sold in February 2020 for $2,160. Now it's sold for $21,600.
Can someone help me understand why?
My (infrequently updated) hobby website Groovycoins.com
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I think the most likely explanation, by far, is that at least two bidders thought the coin was a Proof. And if so, that they didn’t see it before the previous sale.
Mark Feld* of Heritage Auctions*Unless otherwise noted, my posts here represent my personal opinions.
So much for due diligence
Maybe someone will be looking for a refund
Mike
My Indians
Dansco Set
More times than not, when an auction coin sells for far in excess of what would be expected from its grade and attribution or designation, I believe that the top bidders have done their due dilligence.
Mark Feld* of Heritage Auctions*Unless otherwise noted, my posts here represent my personal opinions.
Not a series I am familiar with, but some weakly struck reverse elements and a debate if proofs even exist from this year would make me think it's more likely an early business strike.
And this NGC Specimen 64 dime sold for $72,000 at Stack's Bowers.
A very difficult year for Proof half dimes and dimes.
That NGC Specimen-64 actually looks like a proof!
30+ years coin shop experience (ret.) Coins, bullion, currency, scrap & interesting folks. Loved every minute!
Mark…what would be the tell-tale features that would distinguish this coin from being a proof? Thanks!
Agree with you Typekat about the dime. It may wind up in a Proof holder in the future.
Nice coin, no wonder it brought that premium.
Message sent.
Mark Feld* of Heritage Auctions*Unless otherwise noted, my posts here represent my personal opinions.
Is it a proof or is it mint state? To me, even if certified as a proof I would reject the coin. A weakly struck reverse like that on a "proof"? No thanks.
The 1837 specimen dime and PL half dime would make a great pair!
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I sold a CBHDime earlier this year on GC Auction that I had hopes of $6-800 and sold for $1200, while not truly comparable it still shows what a couple or few bidders can do to a auction amount. Great coin, regardless.
Jim
When a man who is honestly mistaken hears the truth, he will either quit being mistaken or cease to be honest....Abraham Lincoln
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Can you share on here? I am curious as well
Because it turns out that I know both the buyer and the seller I don’t feel that it would be proper to discuss the coin. Otherwise, I’d be happy to.
Mark Feld* of Heritage Auctions*Unless otherwise noted, my posts here represent my personal opinions.