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 Replies: 21 / Views: 2,137 |
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Valued Member
United States
110 Posts |
possibly same thing in my opinion and then has been circulated for awhile....
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Moderator
 United States
15489 Posts |
Wow ... two coins in the same thread make it very confusing to reply ... politely suggest monika that you start a new thread for all new coins.  I am not convinced that the initial OP coin can be easily discounted as PMD ... my opinion is based on the visual images of straight lines proud (above) the surfaces ... There are no known to me PMD processes that could cause raised surface issues ... therefore I state my opinion that this is either a very deceiving photograph ... or some mint problem occurred to create it. David Take a look at my other hobby ... http://www.jk-dk.art |
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Valued Member
United States
110 Posts |
just out of curiosity lets say it did occur at the mint? what could have caused this effect?
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Moderator
United States
16679 Posts |
The lines are raised, correct?
swcoin.ecrater.com
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Pillar of the Community
 United States
746 Posts |
nickel searcher....sorry about the other pics .I just put them on here because the lines look just like the previous coin.
Im at work right now ,but when I get home in the morning I try to make more pics.And yes the lines are raised.
Now need to hopp of here before I get in trouble ...lol
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Pillar of the Community
United States
2624 Posts |
Quote:
striations
Term for the incuse polish lines on the die which result in raised lines on coins. These are usually fine, parallel lines though on some coins they are swirling, still others with criss-cross lines. Planchet striations are burnishing lines not struck away by the minting process and are incuse on the coins. from glossary. |
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Pillar of the Community
United States
1721 Posts |
 Planchet Striations. I have a Kennedy half with the same features and the same diagnosis. |
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Valued Member
United States
381 Posts |
Thanks for the information about Planchet Striations. I don't think they hold any extra value. I still keep them because they look kind of cool. I may try to collect one example for every denomination of coin?
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Pillar of the Community
United States
746 Posts |
Thanks guy's.Learned something new .....No need to make any more pics of the coin...:)
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Valued Member
United States
163 Posts |
Hi Monika. I'm split between 2 possibilities. First, severe die polishing due to a clashed die with the reverse die being changed. Second, defective metal strip making planchets look striated.
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Valued Member
United States
163 Posts |
Hi Monika. I'm split between 2 possibilities. First, severe die polishing due to a clashed die with the reverse die being changed. Second, defective metal strip making planchets look striated.
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Pillar of the Community
United States
3592 Posts |
You'll notice planchet striations on weakly struck or Struck Through Grease coins...and that's what I think you have here. |
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Valued Member
United States
110 Posts |
Either way excellent brain teaser thanks for sharing
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Pillar of the Community
United States
2739 Posts |
These are generally identified as "roller marks" from the rolling mill. Another possibility is striations from a rotating descaling brush applied after rolling. No conclusive explanation has been produced to explain this effect.
Error coin writer and researcher.
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Pillar of the Community
United States
746 Posts |
So...pretty much that happen before minting?..I still have a lot to learn about coins ...lol.But it's fun.:)
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Replies: 21 / Views: 2,137 |
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First Page
Posted 12/08/2012 9:45 pm
