It sounds like either someone tried to create their own "clip" or it was a genuine incomplete planchet but was damaged(bent). The clip occurs when the sheet of metal used for punching out blanks does not advance far enough for the next punch and the punches overlap. Then coin is the run through an upsetting mill to create the beginnings of a rim-obviously a curved coin could not go through this process. The incomplete planchet would then be struck which would also flatten any curve.
I won't tell you it is a waste of time to post a pic though as pics, even of damaged coins, can always be a learning experience
I won't tell you it is a waste of time to post a pic though as pics, even of damaged coins, can always be a learning experience



















