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Bedrock of the Community
coop's Avatar
United States
62064 Posts
 Posted 07/09/2013  11:48 pm  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
On the subject of die attrition:

What is the cause of die attrition?

What side of the coin is affected?

Would both sides be afftected?

Bedrock of the Community
Earle42's Avatar
United States
10038 Posts
 Posted 07/10/2013  12:00 am  Show Profile   Bookmark this reply Add Earle42 to your friends list Get a Link to this Reply
"I suspect the Nargles are behind it. "
How much squash could a Sasquatch squash if a Sasquatch would squash squash?
Download and read: Grading the graders
Costly TPG ineptitude and No FG Kennedy halves
https://ln5.sync.com/dl/7ca91bdd0/w...i3b-rbj9fir2
Pillar of the Community
Sudz's Avatar
United States
1572 Posts
 Posted 07/10/2013  12:14 am  Show Profile   Bookmark this reply Add Sudz to your friends list Get a Link to this Reply
I'll take a crack at it...

1. I'm guessing the hammer die strikes toward the edge of the coin many (a few) times instead of evenly throughout.

2. Initially the obverse or hammer side.

3. Yes, if struck enough times, eventually the reverse would get smashed as well.

These guesses are based on what I see might logically have happened with your coin. As John1 would say, I'm no expert, it's just my humble
opinion. Earl42 is probably closer to the truth.
Edited by Sudz
07/10/2013 12:15 am
Pillar of the Community
Jayman931's Avatar
United States
2651 Posts
 Posted 07/10/2013  12:13 pm  Show Profile   Bookmark this reply Add Jayman931 to your friends list Get a Link to this Reply
This is my understanding of it (Die Attrition)...The angle of one of the dies is off. After many strikes it flattens out the side that is at the highest point of the angled die. It removes the devices in that area...depending on the number of strikes it could be a small area or could be a large crescent looking featureless part of the coin. I am not sure but I would suspect only the side with the tilted die would be affected. If your coin is Die Attrition I would say it is an early strike of a tilted die. That's my story and I'm sticking to it. I could be way wrong :)
Edited by Jayman931
07/10/2013 12:13 pm
Rest in Peace
Buddy's Avatar
United States
7075 Posts
 Posted 07/10/2013  9:16 pm  Show Profile   Bookmark this reply Add Buddy to your friends list Get a Link to this Reply
Pillar of the Community
DrDon's Avatar
United States
2624 Posts
 Posted 07/10/2013  10:14 pm  Show Profile   Bookmark this reply Add DrDon to your friends list Get a Link to this Reply
Looking at error-ref.com I'd pass on die attrition. Unless they used the most extreme example they could find.The wide area of the rim in those photos appear to taper towards the face of the coin. On this cent it appear to be "squared off".
Bedrock of the Community
coop's Avatar
United States
62064 Posts
 Posted 07/12/2013  12:39 am  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
Back home again. Sorry, a mini vacation took me away a few days.

On the subject of die attrition:
http://www.coinworld.com/Articles/V...are-remarkab
What is the cause of die attrition?
The miss-aligned die (MAD) is touching the collar and removing part of the die. Removing part of the die in that area.
https://www.coincommunity.com/forum...ttrition.jpg
What side of the coin is affected?
The die that is adjustable (Hammer) is the only side affected. The other die is stationary. (Anvil)
Would both sides be affected?
No. Just the anvil side would be affect. On the coin in this thread you see the same affect on both sides of the coin. So it isn't die attrition.
Edited by coop
07/12/2013 12:40 am
Bedrock of the Community
coop's Avatar
United States
62064 Posts
 Posted 07/12/2013  12:45 am  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
Lets make this a learning experience with a process of elimination.
1st item on the poll:
1. Why can't it be die polishing?
Note the area affected by the anomoly. The fields are what are polished. The area affected is the rim area. (There is die polishing on the center of the die and even some clash marks, but we are examining the rim area)
2. What is the purpose of die polishing?
Die polishing is used to remove clash marks.
3. What areas are usually polished on a die?
Just the areas affected by the clashing. Polishing removes some devices that are mid, so they only want to remove the clash marks.

The area in question is a rim issue and not a center die issue.
Edited by coop
07/12/2013 12:47 am
Bedrock of the Community
coop's Avatar
United States
62064 Posts
 Posted 07/12/2013  12:52 am  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
Next poll item:
Die Deterioration:

What do you see on a die that is wearing?
There is Die Deterioration in areas affecting the devices. But the area next to rim would still be strong normally with a normal strike.
What areas are affected?
The areas affected by Die Deterioration are the devices facing the rims first. Then the die flow is noted toward the rims on the field areas. But this cuts off at the edge of the die.
Why is this rim not affected by Die Deterioration?
The normal strike would help roll the rim higher toward the edge of the coin marking the rim rounded. On this coin this is not present. So it would not be a Die Deterioration issue.

So the rim area question is not answered yet.
Edited by coop
07/12/2013 12:53 am
Bedrock of the Community
coop's Avatar
United States
62064 Posts
 Posted 07/12/2013  12:56 am  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
Machine Doubling 2% 1 Votes
Ejection doubling 5% 2 Votes

The area in question is not affected by Machine Doubling or ejection doubling. This only affects the devices, not the area of the rim.
Bedrock of the Community
coop's Avatar
United States
62064 Posts
 Posted 07/12/2013  01:00 am  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
Coin damage 7% 3 Votes

There is a little coin damage on the rim on image 01 by the date area. But the overall view of the rim area is not affected by coin damage.

So what are we missing on this coin?
Pillar of the Community
Jayman931's Avatar
United States
2651 Posts
 Posted 07/12/2013  4:39 pm  Show Profile   Bookmark this reply Add Jayman931 to your friends list Get a Link to this Reply
Partial collar?
Bedrock of the Community
coop's Avatar
United States
62064 Posts
 Posted 07/12/2013  6:50 pm  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
The outside rim is normal.
Rest in Peace
Buddy's Avatar
United States
7075 Posts
 Posted 07/12/2013  6:59 pm  Show Profile   Bookmark this reply Add Buddy to your friends list Get a Link to this Reply
I'd like to change my answer to 'something else'.
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DrDon's Avatar
United States
2624 Posts
 Posted 07/12/2013  8:37 pm  Show Profile   Bookmark this reply Add DrDon to your friends list Get a Link to this Reply
Question: Was it a single cause or a combination of two or more?
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