2011 Cent

That's common for the VDB. That's what die wear looks like on a raised element of the die, and it doesn't take much wear at all on the VDB.

 

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Not sure I agree with that. This extra incusive into the coin requires more stuff on the die, which can't be achieved by wearing off the positive part of the die.

 

Has absolutely nothing to do with wearing off the positive part of the die. It has to do with metal flow at the periphery of a convex die.

 

Please do explain.

 

This appears to me to be resultant from a worn die, very unlike the DDO of topic.

 

Same thing we see with any deteriorated die.

http://error-ref.com/radial-flow-lines.html

 

How are we to relate that to the incusive DD feature? Flow lines do not eliminate/negate the DD, incusive nor on the devices.

Here we have a coin that is generally accepted to be DD. It also shows exactly what is generally accepted as DD for incusive areas, namely similar in appearance to VD on devices. This should be a tool to help ID DD via incusive features. Which part of that are you arguing with, and how do flow lines relate?

 

From the image, I'm not seeing doubling on the VDB; I'm only seeing metal flow.