What happened Here?????

What happened to the surface under the bell on the reverse???? Looks almost like a penny that has bubbled up????

 

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Interesting. I'm guessing a planchet problem rather than a die problem. Proof dies are usually given very special care and have a relatively short live (in the range of just a few thousand coins for modern Proof dies) so I think we can rule out a rusted die. (Anyway, the imperfections appear to be incused on the coin and a rusted die would produce raised splotches on the coin.) And if a die produced several coins with this same imperfection other examples would be known and would probably be listed in a variety book somewhere.

Another reason I think it is a planchet problem rather than a die problem is that the problem would have probably been detected rather quickly if the die was producing multiple coins with the same imperfection and taken out of the die press and the affected Proof coins would likely have been found and destroyed. I think it would be more likely that one planchet with imperfections (e.g., a pitted surface) could slip past the QC controls, especially when the imperfections end up on the reverse of the coin after it was struck.

 

I'm thinking a planchet problem as well. Cool coin.

 

The planchet is polished?

 

That's a tough call... I'd love a good close up of the area.

 

greater than that?

 

If you look close under DRW there seems to be something other than that it just looks like an orange peel.

 

Matthew's got plenty of resolution in that photo to play with.




So what we lookin' at?

 

why its orange peeled and thanks green18 life saver for sure.

 

Looks like someone hit it with bird shot........

 

Planchet issue?

 

The QA at the mint isn't always 100% perfect, I mean, they do allow error coins to be released when they're not suppose to be released.

 

That wasn't my question. Does the die create the polished look or is it the Planchet.

 

Both.

 

because i would think that if the die was forming the smooth mirror like surface, that it would not be possible for the Plachette to create this problem, but I admit to being completely ignorant as to whether that is the case or not. i was thinking that maybe if was uneven pressure??

 

Uneven pressure wouldn't produce that kind of effect (I think).......

 

I see a crack in the bell and what looks like a strand of hair.

 

That is interesting to read because i was more or less moving my thinking in that direction the more I looked at it. I didn't have the specific details you had expressed so you filled in the gap of what possibly happened here. But i was thinking when the die strikes, the metal has to flow on the strike. Even if it was slightly pitted, I would think it would smooth out.

Ruben

 

My inititial thought is something to do with polishing the die, ie grease, polishing cloth, etc. left in the die. The roughness seems to extend across the letters E DOLL to the edge of the coin. Looks like GDJMSP saw something similar. I have a habit of writing before I see all the responses.