Unusual PMD
ifthevamzarockin
Posts: 7,996 ✭✭✭✭✭
Here is some unusual PMD.
First glance looks like it was punched/stamped/hit and the edge around the crater is raised ever so slightly.
Turn it over and there is no flat or damaged spots that you would expect to see.
The quarter is still perfectly flat and is not bent or warped.
The crater doesn't show grinding marks or polishing.
How do you displace that much metal without distorting the coin?
There is a strange ring of PMD that has moved some metal and may be from how the coin was held.
I know this is just another PMD coin that unless you were there when it happened there is no way to know for sure.
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Comments
very nice images and presentation!
i was squirming a bit to know what to even say. is it even authentic? shouldn't there be some core visible?
if it is an error, it is the first of its kind i've ever seen.
with the surfaces the way they are, i'd say someone just took a 2020 quarter and had a lot of fun with it.
the metal displacement around the obv/rev i'd say is related to some pressure and/or heat connected to that obv crater.
drill?
If it was drilled, ground or sandblasted etc. I would think the copper core would be showing.
There looks to be some visual effect on the reverse.. or lighting is just playing a trick on my vision. As far as the indentation, I would say it was done with pressure, slow an easy application with the reverse against wood. Why? I have no idea... Cheers, RickO
@ricko "There looks to be some visual effect on the reverse.."
The reverse die appears to have quite a bit of die erosion.
The type of pressure require to make the crater should have caused more damage to the reverse or distorted the coin.
I don't know..... one guess is as good as the other.
@LanceNewmanOCC "is it even authentic?" & "if it is an error"
I'm not sure about too much with this one but to my eye I would say it is authentic and it is not an error.
most likely.
just after some of the stuff i've seen from china, literally 1950s era lincoln cents counterfeited, my eyes will believe anything is counterfeit these days.
i also considered that coin maybe had an false obv. stuck to a diff reverse. a lot of bored and crafty people out there.
a good thing with errors is, occam's razor
Glad it's not a W!
@ricko "There looks to be some visual effect on the reverse.."
I had to break out the 30x & 60x loupe to take a closer look at this coin.
I was wrong about the die erosion.
Upon further review the visual effect on the reverse appears to be more PMD.
It looks like the texture you see from a rotating wire wheel.
The obverse has lots of metal moved and lots of deeper scratches that have been polished or worn down.
You can see some of this around the TY of Liberty and the neck area.
I can try to get some photos or I may just mark the areas on a photo if needed.
The crater doesn't show any signs of scratches or polishing at 60x ......????
Ball peen hammer.
But where is the corresponding damage on the reverse?
BB Gun?
Hey, what happened to the TY in Liberty? Anyone have a overlay of this coin? It almost looks like a clash!
A drill wouldn't necessarily show damage on the other side, unless it went all the way through.
His eye looks weird as well!
@USSID17
"Hey, what happened to the TY in Liberty?" & "A drill wouldn't necessarily show damage on the other side, unless it went all the way through."
The TY is post mint damage and shows scratches or grinding marks.
To drill that deep into the coin should start to show the copper core.
Upon further review.
The ring on the obverse appears to be rolling machine damage that has been polished or buffed down.
No end to the amount of PMD on this one!
Maybe a hit from a 177 cal pellet gun.
Picture a C-Clamp.
At the end of the threaded rod that you turn to tighten the clamp, there is some sort of tip or pad to hold the item being clamped.
This tip is usually on a swivel to make it easier to clamp something that in angled rather than flat.
The face of the swiveled tip is often flat, but sometimes the end of the threaded rod is just a ball with a movable metal flange around it. The ball makes the contact with the item being clamped while the flange makes contact out a ways to steady the object.
Put a leather pad on the solid end of the C-clamp and then this coin with the reverse against the leather to protect it. Tighten the C-clamp as hard as you can. The ball of the threaded rod indents a crater without piercing the clad layer or seriously damaging the reverse. The metal flange causes the outer damage. Screw it up as you are starting and the ball smears the TY or LIBERTY.
I vote for some sort of high speed bit, very fine grit.
@Jimnight & @CaptHenway Both great answers! Thanks for taking the time to reply.
The crater doesn't seem to match the size or diameter of a BB but seems very close to a .177 cal. pellet.
I can see how leather could protect the reverse design.
Still kinda surprised to not see more distortion from metal displacement. ???
This is my idea of machine wrapper damage. So you're saying, someone would polish or buff down roller machine damage?
@USSID17 "So you're saying, someone would polish or buff down roller machine damage?"
Yes, but I would guess they were not trying to buff out the roller damage but were buffing the entire obverse surface.
It would also appear the example you are showing may have been scratched a little deeper than mine.
Denver Mint mark. A lot of strange things happen at a mile high......eerie strange things.
bob
Yes but Philly is "much" worse!!
I've seen a myriad of older and better date coinage damaged by this damn thing