Hello all I ordered some mint sets from ebay and on one of the dimes it looks like what ever machine puts the teeth on the side of the coin slipped and took a bite out of the top of the coin. Was wondering what its called when this happens? Also the coin was pulled out of the original mint cello by me and there was 0 damage to the wrapper so I think that cuts out PMD. I posted the same question on a coin group on facebook and members are too busy trying refute this was mint damage and less concerned with the actual question. One member even said it was from someone using a heat tool to reseal the cello. If someone can tell me how a heat tool can make evenly distributed .5 mm deep gouge marks please explain that one to me.
Forget whatever heat tool you're talking about. It happened at the Mint but it's not a Mint error. It happened after the coin was struck by the cellophane wrapping machine. I have a couple of them...
Yes, we've seen images here before of sets coming from the mint with this kind of damage. Unfortunately, now that you've taken it out of the cellophane yourself, you don't have much of a case for returning it to the eBay seller.
FYI @Scottinvegas Those are not teeth on the edge of the coin. That is called a "reeded edge". It is formed by the retaining collar while the planchet is in the coining chamber. The coin metal expands and forms the edge when the hammer die strikes the planchet. Chris
I don't think he's talking about the reeded edge. He's talking about the teeth marks caused by the lamination/cellophane machine.
"Hello all I ordered some mint sets from ebay and on one of the dimes it looks like what ever machine puts the teeth on the side of the coin slipped and took a bite out of the top of the coin." So, what "machine" puts the teeth on the side of the coin? Retaining collar, right? Chris
My humble opinion is packaging error. Possibly by the cellophane crimping equipment. Theory: the dime was struck by the crimping plate simultaneously pinched or pushed the coin into the pocket. This would explain why there was no visible damage to the cellophane. The spacing of the "teeth marks" is larger then the reeded edges so I eliminated is as the source.
It's a packaging error. Notice that the lines on the coin match the 'lines' surrounding the plastic square where the coin is. The coin was laying over the sealing machine in that area, receiving the imprint. PMD