Silver Proof State Quarters Set STRUCK THRU

Maybe it's bubble wrap struck through and melted on, twice since it's proof.

 

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I agree with a bit of acetone. Acetone will not effect the metal in any way. I think I would just splash a little on the surface to see if the anomaly begins to melt. It looks a lot like a one of these (which have a variety of uses in an industrial setting):

 

Bubble wrap is much bigger . It only about size pen head . And it long .

 

Tiny bubbles of some sort.

 

Well , even it tiny bubbles it will not has mirror finish .
The objects has mirror finish just like coin it self , I guess it was coin scrap metal from other coins .

 

Is the "bubble" area raised or incuse?

 

If it's incuse, below the surface of the fields, it's either damage or a struck thru

 

Sorry frist i saw Incuse was same level , some time to hard for me to understand a word . It not " Incuse " , or raised , It same Level as surface of the fields . It Feel like raised tinny when change view angles , maybe just it mirror finish reflection .

 

Cue the ukulele: Don Ho singing
tiny bubbles,
on My proof,
asking questions
What's the truth?

 

Just found this Coin on Sullivan Numismatics site for sell Maybe this same type error !

pcgs 10c 1912-d barber dime struck thru & retained reeding & 10% off-center ms-62



PCGS 10c 1912-D Barber dime struck 10% off-center and also struck through a long piece of silver reeding, with the piece of reeding retained and creating a fantastic 2-piece set! The silver piece of reeding came off another coin, and was struck into this coin's reverse. Amazingly the silver piece of reeding did not get lost, but stayed with this coin until some individual pulled it from a roll or bag of dimes.

The error likely occurred when another Barber dime was struck with a high "finned" rim, or when some sort of dramatic multi-struck error resulted in a thing layer of reeding protruding from the coin's edge. Then the piece of metal separated from that coin, and landed on top of the reverse die. This coin's planchet was then fed on top of that sliver of struck reeded edge and was struck on top of it, pressing the reeding fragment into this coin's reverse, and creating a nice "brockage" of the reeding. The silver fragment stayed retained into this coin's reverse until it made it out of the Mint, and at some point separated, creating this 2-piece set.

Finding coins with struck in and retained scrap/objects. Most of the time the object is lost forever, and finding coins with the struck through object are rare. This is the only Barber dime we have heard of with something like this struck into it, and then with the object retained. Extremely rare.

PCGS MS-62 light golden tan surfaces and subdued luster.

https://sullivannumismatics.com/coi...-struck-thru-retained-reeding-10-center-ms-62

 

I am sending it to NGC Today Let see what it coming back in few weeks >

 

Did we just shift to another movie? What the devil happened with this thread?

 

IT BACK FROM NGC TODAY . It STRK THRU REEDING FRAGMENT ! AND REEDING IS BONDED ON THE COIN . I BET THE THIS SUPER RARE ON SILIVER PROOF COIN .

 

Congrats! Again, I don't know what this is worth to error collectors, but there are error specialists here who might be able to give a good estimate.

 

That is amazing. It's rare but that doesn't make it super valuable in my opinion. Not thousands

 

Very cool, and unusual.

 

Now that you got it authenticated there's little reason for me to give my guess - but I will anyway. I would have guessed it was pre-strike damage to the planchet. Oh well.

 

I like the cert number too... lots of 4's

 

If the OP (Kevin Wu) is Chinese, he might disagree with that.