Discussion in 'Error Coins' started by JCro57, May 18, 2019.
When I get home I will show everyone a few from my collection
Log in or Sign up to hide this ad.
Thank you @paddyman98
I enjoy learning
It’s quite fascinating to me!
If the weight is normal, it's not a thick planchet or wrong stock.
I know the weight was asked for earlier in the thread, but I think that's important.
AMEN! Furthermore, just because the rim has a fin does not indicate the planchet is normal or not. Think about it. What size planchet would have more chance of excess metal squeezing between the die and collar:
The weight will answer the question.
Should know in a couple days.
But this is the internet. We must know the answer an hour ago.
Not questioning if it's a finned rim. Just asking if the coin metal is squeezed into the narrow gap between the die neck and collar, how does the reeded edge extend all the way from top to bottom? I would think the metal that was squeezed into the gap wouldn't have any reeding.
Reasonable question, but that’s beyond my knowledge. I’ve never had the pleasure of viewing these pieces up close to see what that gap looks like. Perhaps the collar reeding extends further than where the coin is struck.
Imho, I’m wondering if it is possible that it was reeded twice.
A glitch in the collar before release?
Ummm... what?? Walk me through the minting process and please explain to me what you think “Reeded twice” means.
No.. Only once
I fell asleep last night. I will show pictures of my Finned Rim coins this evening. Sorry
The collar is hardened steel.
The planchet, which is slightly smaller, is pushed into the chamber. The Hammer Die smashes it against the Anvil Die and the coin is squished slightly wider of which the edge takes form of the collar which for dimes has a reeded edge.
The Anvil die then raises the coin out of the chamber, and retracts waiting for the next one. All much faster than the blink of an eye.
The collar doesn't generally move from it's position.
You're not allowed to sleep.
Oh Paddy, please don't apologize for sleeping. We all do it from time to time. @paddyman98
Yes the "thick" one does have a finned rim, but that is NOT why it looks "thick". It would look thick even if it didn't have a finned rim. The key is the edge is fully struck.
On the top coin in the first picture the edge and rims are fully formed and the reeding goes all the way from one rim to the other. On the lower coin the edge is NOT fully struck up. It only made contact with the collar in the center area of the edge, and you can see how the metal of the edge then bevels from the reeded portion to where the rim is forming (both obv and rev rims). This gives a reeded edge that is only about half as thick as the upper coin. That makes the upper coin appear "thick". With todays high speed presses edges like the lower coin are not unusual but fully formed ones like the upper coin are and we notice the "unusually thick coin".
The upper coin is what they should be, the lower coin is what most are, to varying degrees.
I agree with what you have stated. After looking at so many coins over the years you can tell the slight differences.
But here is what I was explaining. 4 coins from my collection with Misaligned Die Strikes which caused the Finned Rim affect.
I am showing only the edges on the sides that are finned. You can see the slightly thick appearance compared to a normal struck coin of the same denomination -
Left Dime - 1988 MAD Finned Rim
Left Nickel - 1999 MAD Finned Rim
Left Cent - 1971 MAD Finned Rim
Left Cent - 1999 MAD Finned Rim
Just got it in the mail. The weight is 2.3 grams
Thank you, great examples.
Thank you for sharing @paddyman98 !
Nice collections of a finned rim!
Thanks! Here is some more information from an old thread of mine - https://www.cointalk.com/threads/finned-rim-explained-6000th-post.290930/
Showing a slabbed finned rim and more pictures of the coins I have posted.
Separate names with a comma.