"There is no such thing as extra metal. A planchet is a planchet is a planchet. The build up of metal comes from a die chip."
Alan Herbert in his Official Guide to Mint Errors describes coins struck through unstruck planchet fragments (p258). Coins can be struck through unretained laminations coming from other planchets. These can be retained which I believe is what caused the extra metal on eddio's coin. Herbert starts value at $1.
Edited by sab3927
02/05/2013 4:09 pm