I have a question for you. This appears to be a lamination error that occurred immediately after striking. If that is correct what would happen if it were to become stuck to the die? Would it not create struck through errors with the appearance of lamination errors? If so is their a possibility of misidentification in the market.? What if the lamination where to stick to the next coin? Are their examples of this and how would that be classified? I suppose that was more than one question, Ha ha Edit: My imagination ran wild with possibilities seeing that huge chunk missing.
This was probably lost in the bag that transported the coins . If it stuck to the die. It would have definitely left a strike through. Here, this will help with identification of the different errors of modern coinage. http://www.error-ref.com/ What I find fascinating about a Detached Lamination. Is the definition, created with the tonnage of pressure used to strike a coin. As you can see the images beyond the surface. Most strike throughs usually have a ghostly image of the devices.
It would create strikethrough errors, yes, but their appearance would be different. They would be easily identified by the weight. A lamination error has a missing piece, so it will weigh less than a full planchet. One that was merely struck through will weigh the same as a normal planchet. And one to which the fallen off piece had then stuck would weigh more than a normal planchet. Yes, there are plenty of examples. They are known as "struck through with retained metal" or something similarly descriptive. Here is a bit about them: http://www.error-ref.com/retained-struck-through-scrap-metal/ And here are some examples in the Heritage archives: https://coins.ha.com/itm/errors/196...-29509.s?ic4=ListView-ShortDescription-071515 https://coins.ha.com/itm/errors/196...1-4974.s?ic4=ListView-ShortDescription-071515
