This is caused by a phenomenon called progressive, indirect design transfer. http://www.error-ref.com/progressive-indirect-design-transfer-.html
Not sure how common they are on other denominations, but they are quite common on wheat cents. Cool find.
Could it have to do with the way the metal flows when being pressed. The metal at the center of the coin flows upward into the center device while the metal in the field around the center device/design flows outward towards the edge of the coin once it has filled the device of the die creating a differing stuctual matrix in the latice structure of the metal on the nano scale in the area in and around the device where the metal flowed into the device then changed direction and flowed away from the device pullin the molecula chains of metal way from that area as it flowed in a new direction stealing and dragging away some metal from that area kind of like streatch marks in a way. or something like that. The 1912 English One Penny from the link is what gave me tht idea plus the term progressive like as in how the metal progresses as it flow in different directions at different times during the procession of metal indirectly pulling metal out of that area of the coin because the metal was already quantum intangled in that area of the coin. Or it could just be a case of mass pareidolia in which case i know a good psychologist i could give you a number for...
To answer your question, No. As the dies wear, and I'm talking extreme wear, the designs actually transfer from one die to the other through the metal planchets that pass between the dies. Eventually, you get ghost images that are actually in the dies. An impession of the obverse bust, for example will be visible on the reverse die. That impression shows up on the struck coins.
It's physics; for every action there is an equal and opposite reaction. Rinse and repeat for 100s of thousands of strikes and you get this.
ok buts there is more to it then that i would think... It just doesnt make senxe that an image on two hardened metal surfaces could transfer any design element by squeezing a softer metel blank slug/planchet no matter how much ware there was.. you might think that when the coin is being pressed it warms up quickly and then when it cools it cools from the edge inward and the metal shrinks a little on the field and reverse first because there is less mass on that side so it cools faster around the area of the larger device/design and it cools slower in the bulge of the dominate device on the obverse creating some kind of thermal effect tranposing a bit of the design feature through the intire coin because the largest device cools slower in that area and shinks less. maybe this happens after a long run where the die's even get hot themselfs along with the collar transfering more heat making this effect more predominate at that point. ie extreme ware lots of friction plus heat BINGO maybe its some kind of themal dynamic effect. I bet the first coin pressed in a run comes out warm and the last one after a long run ends up really hot. have you ever seen those survival fire starters where you just slam a plunger into a cilinder and it spontaniously egnites cotton or what ever. Maybe some of these effects are what you say but maybe there are more complex answers like this one wich is actually pretty simple when you think about it. maybe you are right and im not saying it doesnt happen as you said but it just didnt make sense to me maybe there is more then one way this happens though and this could be one way. cause i see this effect alot in coins but never thought much of it . anyways are theses concidered error coins or are they just some kind of transitional image effect ,thermal dynamic effect or just a case of pareidolia. Also do they have a premium of any kind?
It's not about thermodynamics. It's about the hammer die pulling metal into the deepest recessed areas of the die. Equal and opposite reactions. Think about it. With a die it can be repeated 100s of thousands of times.