A clipped coin aka incomplete planchet sometimes shows a diminishing on the rim that is opposite of the clip. The rim is not formed as strongly in that spot. This is because the punched out blanks go to an "upset" machine that forms the rim. That's when the blank becomes a planchet. But the machine does not have anything to push against where the clip is, so less pressure is delivered to the opposite area resulting in a diminishing of the rim or the Blakesley effect. So named after the person who discovered it. However, sometimes there is no Blakesley effect which makes it a mystery again. I don't see it on your dime. This may be because your clips look more straight than curved so the "upset" may have been able to send enough pressure to the opposite side. Do you see anything?
That's not an incomplete planchet unfortunately. It looks like blunt force to the edge A true 'Clipped' planchet wouldn't show reeding in the area in question. That means it was perfectly round from the time it was struck. But great that you ask!
Anyone care to revise their post or explain to me how this is not an incomplete planchet with a small double clip? The second photo clearly shows a copper edge. Yes there is reeding and there shouldn’t be but it the clip was so close to the edge couldn’t it allow reeding along with the copper to be present? Look at the last photo. The surface of the coin but the one clip area is raised in the field. Damage would cause that but I also think the minting process would do the same with the clip being so close to the edge. I included my Kennedy Half Dollar triple clip to indicate what I’m referring to but the clip on my coin is much larger than that of the OP’s coin, not to mention the size of the coin, a dime compared with a half dollar. Someone please explain. @paddyman98
