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 Replies: 14 / Views: 5,285 |
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Pillar of the Community
Canada
1166 Posts |
I found this in a new roll of 2010 quarters this morning:  |
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Pillar of the Community
United States
7197 Posts |
I've found a few in my days, all have been from new rolls of quarters, and all seem to have scratches and small anomalies. does the minting process press out these imperfections?
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Pillar of the Community
 Canada
1166 Posts |
Quote:
've found a few in my days, all have been from new rolls of quarters, and all seem to have scratches and small anomalies. does the minting process press out these imperfections?
Yes it does. I should add that it depends on how badly damaged the planchet is. Most surface scratches and minor imperfections will disappear when the metal flows during the strike. If it is deep or if the planchet is cracked then those will show. Edited by ikandiggit
03/23/2011 5:14 pm
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Bedrock of the Community
Canada
10743 Posts |
Nice score, ikandiggit..  I can never find anything like that..  |
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Pillar of the Community
United States
737 Posts |
Nice! Still waiting for my first.
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Pillar of the Community
United States
1204 Posts |
Nice ! So we can almost say 2010 blank planchet quarter cause from a 2010 quarter roll. .
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Bedrock of the Community
United States
14454 Posts |
I have never found a blank planchet either but I also never roll search. I have gotten rolls from other people when they are paying for things or if they have change and want cash for them from a few family members but thats it. I am not into modern coins so searching through rolls seems pointless to me because I hate seeing them in my pocket and always just dump them in a jar waiting to get full so I can carry it to the bank. I couldn't imagine looking at a whole box full of the same coin. I think maybe I have sent something nice to the bank but hopefully if I have it will spark a YN to collect or a collector will find it someday
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Rest in Peace
United States
9104 Posts |
Nice type II quarter planchet.
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Pillar of the Community
United States
3184 Posts |
very nice! Haven't found any yet but maybe soon :)
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Pillar of the Community
Canada
693 Posts |
It's hard to find blanks for plated-steel coins. Nice!
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Pillar of the Community
Canada
1166 Posts |
Thanks for the comments. It's funny to be so excited about a round piece of metal, but I'm still thrilled about it!  Quote:
Nice ! So we can almost say 2010 blank planchet quarter cause from a 2010 quarter roll. Definitely. Came out of a brand new roll of 2010's. |
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Valued Member
Canada
166 Posts |
Very nice! You don't see them at all. I would be thrilled as well :)
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New Member
Canada
4 Posts |
What you have is an "upset" and 'annealed" blank. When blanks are punched on the press they are quite hard. The edge is then rolled on or "upset" while its still hard. Next it's annealed or softened by heating in a furnace [i think about 1200 F for steel and Ni cooler for Cu] after that blanks are cleaned by tumbling and washing; I think they use some soaps or chemicals here.On copper they definitely use chemical cleaning -probably sulfuric acid for a shine ; but don't do that to a coin or will be worthless. It's the tumbling that creates the fine marks . The blank is quite soft now and striking will remove any marks. Striking will also revert the coin to a harder condition known as "work hardening" You also get this effect when you bend a wire back and forth and it gets harder and harder .
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Pillar of the Community
Canada
1166 Posts |
Thanks for the information, sab! I'll add these notes to the 2X2.
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Valued Member
Canada
248 Posts |
 -sab- It would seem that you might have some knowledge about the mint process! ---Thanks for your sharing your knowledge with us. This is what this site is for. ---I didn't see your introduction to the forum. If you like check it out! It's a good way for us to get to know a little about you. http://www.coincommunity.com/forum/...?FORUM_ID=56 |
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Replies: 14 / Views: 5,285 |
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Posted 03/23/2011 4:21 pm
