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 Replies: 18 / Views: 1,667 |
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Valued Member
United States
366 Posts |
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Valued Member
 United States
366 Posts |
It's like top or bottom or both top and bottom (observe and reverse sides) edges of the collar is shaved off by something. It's definitely shaving of some sort, there are striations or grooves, very thin striations or grooves.
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Pillar of the Community
Canada
6244 Posts |
I can not tell you what it is for now. Keep those coins. PM me and I will tell you what steps to do.
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Pillar of the Community
United States
676 Posts |
Looks to me like remnants of tooling marks(see below) from when they punched out the blanks or perhaps a worn collar issue to me. Looks similar to tooling marks on sheared metal. 3/8 inch hot rolled steel that has been sheared.  |
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Pillar of the Community
Canada
6244 Posts |
@ Khromtau It is no more tool that cut the blanks. Is use laser cut, so no more annealing for all the coins.
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Valued Member
United States
366 Posts |
Thanks, @silviosi @Khromtau !! I put them aside. Here's a closer pic. The marks go all around the Coin. Sometimes skipping spots.  Edited by NEWmrMatic
03/18/2023 8:42 pm
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Pillar of the Community
United States
3207 Posts |
shrug, I always chalked those up as damage from some sort of machine
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Valued Member
United States
366 Posts |
The rolling company may have a messed up machine. If every Coin is this way. I thought that, wasn't sure. Still not sure. You'd think they would have some sort of Inspection of coins post roll to make sure they aren't being damaged though.
Edited by NEWmrMatic
03/18/2023 10:08 pm
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Pillar of the Community
Canada
6244 Posts |
I do not think it is the rolling machine or counter machine. No one of those machine, mechanisms could live those traces. The first machine work by diameter and second one by weight. Here it is other thing.
For me those coins are very interesting ones. From 3 years I wait to see one as is. Hope I do not wait in vane.
Edited by silviosi
03/18/2023 10:28 pm
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Pillar of the Community
United States
1657 Posts |
silviosi, everything I find says blanks are still punched out on a blanking press, do you have any information on this laser cutting?
Edited by lcutler
03/19/2023 05:06 am
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Moderator
 United States
15395 Posts |
I don't know the answer.  Take a look at my other hobby ... http://www.jk-dk.art |
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Pillar of the Community
United States
676 Posts |
I am confused too, on the US Mint website it says they are stamped out on a press. Maybe in Canada they use a laser?  |
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Pillar of the Community
United States
2365 Posts |
Whatever the cause...it's metal against metal during the minting of the coins and not PMD. Interesting! |
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Pillar of the Community
United States
572 Posts |
The beveling along the top and bottom of each coin rim is normal. It's put on to help with seating and ejection in the striking chamber. It's also one of the first features to wear on a coin that's circulating so it's easy to miss.
The vertical lines on the edge of the rim are signs of a worn collar and are actually more common than many people think because we so rarely examine that part of cents and nickels.
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Valued Member
United States
366 Posts |
@HGK3 I don't necessarily agree with that. These coins are hardly circulated as you may think. And the marks are more prominent on the reverse portion of the collar on 95% of the roll. These marks are not random wear from being circulated. Nearly the entire roll is like this, bright and shiny.  Edited by NEWmrMatic
03/19/2023 2:14 pm
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Pillar of the Community
United States
572 Posts |
Not sure where you got "random marks from circulation" out of my response and a don't know what you mean by "the reverse portion of the collar". The vertical marks on the rim of the coins are from a worn collar, not from circulation. The collar is what holds the coin in place when the dies come together to strike the coin. When the collar sustains wear, usually on it's top or bottom edges first due to ejection of the coin, that wear is transferred to a coin at striking in the same way reeds are transferred to a quarter or dime. https://www.error-ref.com/collar-damage/The link above will show you a much more severe example. |
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Replies: 18 / Views: 1,667 |
Posted 03/18/2023 7:37 pm
