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 Replies: 15 / Views: 1,523 |
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Pillar of the Community
United States
4809 Posts |
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Pillar of the Community
United States
3330 Posts |
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Pillar of the Community
 United States
4809 Posts |
Hi Pete - have you seen this on modern nickels, say 2004 forward?
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Pillar of the Community
Canada
4911 Posts |
yes it is a strike through. probably a thin layer of water, grease or another liquid. I have found a couple State Quarters like that and I belive that it is a liquid that moves on the die some what since the placement on my two is slightly different in areas. Feel free to call me Will.
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Pillar of the Community
United States
5964 Posts |
Edited by CoinMasters
03/14/2016 02:03 am
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Bedrock of the Community
United States
62064 Posts |
I agree with coin masters on this one. The roughness is from sort of grit on the die. It maybe also oil or grease. Something that holds the grit in place from strike to strike.
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Pillar of the Community
United States
4809 Posts |
Thanks folks. I think the grit theory has merit. Although the subject area looks shinier, I do see a bunch of hairline surface scratches which could suggest grit/movement.
I have noticed that 2007 seems to be the most affected year and both sides of the coin can be affected. Looks kind of like surface chatter.
Thanks again!
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Pillar of the Community
United States
5964 Posts |
Yes, I see it on the moderns quite a bit, Rackster. They have that huge wide open field, where I see it the most. I suppose it's a good catch all.
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Pillar of the Community
United States
4809 Posts |
Hi CM - it makes me wonder if something changed in the minting process in the early 2000s. Kind of like a mold release/dressing put to the face of the dies creating the irregular shapes. On the freshest coins you can see and uneven field, like waves and indents.
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Pillar of the Community
United States
5964 Posts |
Yes I think I know what you're talking about. I think it started with the single squeeze. I think it's a very short horizontal movement of the die against the hub, because you can often also see the beginning of trails. There are light and dark areas in a row.
Edited by CoinMasters
03/14/2016 10:03 pm
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Pillar of the Community
United States
5964 Posts |
The grease with grit is entirely different, it just puts "roughness" in certain areas.
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Pillar of the Community
United States
4809 Posts |
Hmmmm...I was thinking that you and coop detected there was more surface scratching in the shiny fields. It could just be from the circulation damage though.
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Bedrock of the Community
United States
62064 Posts |
With the grease/oil on the surface of the planchet, it prevents the surface of the field to be shaped. It is more like the planchet would have look in the raw form along with the grit affect dulling the color.
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Pillar of the Community
United States
5964 Posts |
No, Rackster the grease/oil with grit makes the roughness. What I'm talking about is a separate anomally.
Edited by CoinMasters
03/14/2016 10:16 pm
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Pillar of the Community
United States
5964 Posts |
Quote:
Yes I think I know what you're talking about. I think it started with the single squeeze. I think it's a very short horizontal movement of the die against the hub, because you can often also see the beginning of trails. There are light and dark areas in a row. |
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Pillar of the Community
United States
4809 Posts |
Hi guys - thanks for the explanations. The flow of metal does look affected and although some features are present, they do look weaker than normal. Here's a full obverse shot. The grease affected the temple, the cheek, the bridge of the nose and the fields in front of the forehead/nose and lip/Liberty area. The rest of the coin has the matte finish.  |
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Replies: 15 / Views: 1,523 |
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Posted 03/13/2016 9:00 pm
