Error Stamped Penny - Trying To Learn More

Very nice! I believe that is what is called struck through a capped die. Basically a coin stuck to the obverse die, and when it struck the next coin, it impressed an image of the reverse into it. Maybe someone else can explain it better, but I'm pretty sure that's how it happened. Not sure of the value, I'd guess $25+ at least based on what I see on ebay.

Dave

Thank you for the information. Like the site. Thanks for the welcome also.

Struck through a mid to late stage capped die.

I dislike using the term brockage for anything except a very early capped die strike. The first few strikes result in a coin that looks normal on one side, and the other has the same image but incuse rather than raised. To me this is a brockage. After the first few strikes the die cap starts to spread and the resulting coin has one side normal and the other side has and enlarged distorted incuse image. To me at this point it becomes a struck through capped die piece.