I used to have a defaced die. Sold it because I didn't find it the least bit interesting. I kept the dime though.
All jokes aside now.. I do have a picture of a piece of a Cent Die that actually broke off the Die and created an indent on the Cent. They found the piece and the Cent and both were sent to NGC to get certified - Here is the NGC slab
That's pretty cool. Here is the deal with this one. I got it in change, so have a whole 10 cents in it. If you drag a dime out of your pocket and actually look at it in hand, you'll see that most of these spots are about the size of a pin head. I blew those pictures up as large as I could. You should be able to see nose hair. There is something, of a different metal than the coin itself, however tiny it is, imbedded into the coin. I just thought it was kinda cool and thought I would share it. I'm not trying, or even come close to wanting to, take anyone's glory. The coin isn't for sale or ever will be as long as I'm alive, so I couldn't care any less about the value of such. I'm not going to send it off, nor am I going to pick at it trying to get whatever out of or off the coin. I am beginning to realize why people just read others post and never start their own.
This kind of die chip makes me wonder how it could happen. Where the chip is actually sunken into the die. There has to be, or I would think so, a void in the die itself, bubble maybe?
Very cool, though it is still not the same error that the OP is describing, where a piece of the die is actually embedded within the coin.
Not at all illegal. The Mint sold defaced dies from the States quarter program with a certificate tied to the die serial number. I've got one from the Michigan quarter somewhere around here.
Hommer, you just answered your own question. I die chip on a coin is indeed created by a void on the Die itself. It's impossible for a piece that breaks off the Die to sink back into itself.
"Die chips and small die breaks are nearly as common as the die cracks, but ... If the broken piece of the die is retained, the resulting design will be above Or below the level Of the rest Of the Surface." There are a such thing as a retained die chip. I have several Homestead Quarters with retained die chips that are also raised or in relief on the coin indicating being recessed in the die. http://cuds-on-coins.com/retained-interior-die-breaks/
Retained die chips does not have to do with actual pieces of the die being retained within the coin. Read the link again.
These are very common if you search dimes. I used to and have seen many. This came from the gas station today.