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Possible 2000 P Massachusetts Experimental Planchet Coin

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 Posted 01/22/2014  6:34 pm  Show Profile   Bookmark this reply Add jterry211 to your friends list
I have a few of those friends...
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 Posted 01/22/2014  7:39 pm  Show Profile   Bookmark this reply Add jterry211 to your friends list
it weighs almost 5.9 grams. it was a pawn shop scale so probably off a lil.
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 Posted 01/22/2014  8:20 pm  Show Profile   Bookmark this reply Add ASLAN TVorlon to your friends list
Scales are easy to calibrate, a nickel is exactly 5 grams, 3.2 for copper cents and 2.5 for zinc cents. Or check other quarters, I just tossed a few quarters on my scale and they are all 5.5-5.7, you might have something interesting there.
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 Posted 01/22/2014  11:14 pm  Show Profile   Bookmark this reply Add 7TF to your friends list
You should never scratch a coin. There are better ways of determining if it has been plated. One is to look at it under a strong loop. Find another plated coin and you will notice the differences.
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 Posted 01/23/2014  09:35 am  Show Profile   Bookmark this reply Add chzman to your friends list
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 Posted 01/23/2014  10:12 am  Show Profile   Bookmark this reply Add Hflirn to your friends list
So it is slightly thicker and has a shade less diameter than a normal quarter. My only thought is they came out with a 3 coin ATB set for quarters which included an uncirculated P mint in 2012. I didn't see the year you have but may want to see if they have diff. Dimensions. Cool coin either way! Props
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 Posted 01/23/2014  10:16 am  Show Profile   Bookmark this reply Add Hflirn to your friends list
Oh and all silver quarters of 1964 weigh 6.25 grams. I have heard of a few 1965 examples that escaped a watchful eye
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 Posted 01/23/2014  11:22 am  Show Profile   Bookmark this reply Add Conder101 to your friends list

Quote:
Scales are easy to calibrate, a nickel is exactly 5 grams, 3.2 for copper cents and 2.5 for zinc cents.

Using random coins for calibrating scales is a bad idea.

A nickel is "exactly" 5 grams.....+/- .2 grams so anywhere from 4.8 to 5.2 grams
A copper cent is supposed to be 3.1 grams not 3.2 and it has a +/- .1 gram tolerance so 3.0 to 3.2 grams.
The zinc cent also has a .1 gram tolerance so 2.4 to 2.6 grams
Edited by Conder101
01/24/2014 10:57 am
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 Posted 01/23/2014  4:33 pm  Show Profile   Bookmark this reply Add loganjonathan to your friends list
where did you find it?
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 Posted 01/23/2014  5:47 pm  Show Profile   Bookmark this reply Add jasper62 to your friends list
In the very first picture I see a copper edge just like a normal quarter should be.
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 Posted 01/24/2014  11:46 am  Show Profile   Bookmark this reply Add Dasaki to your friends list
Yeah, I see the copper edge too. In the right light, a solid copper edge on a nice uncirculated coin can seem silver, tricks me from time to time on dimes when I'm just looking at the edges.
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 Posted 01/24/2014  1:03 pm  Show Profile   Bookmark this reply Add liveandievarieties to your friends list
Coins struck on over or underweight planchets aren't considered collectible unless they have at least a 10% variance from mint specifications.

Usually, the simplest explanation is the correct one. You have a slightly overweight planchet that has been plated with silver, which further added a small amount of weight.
Edited by liveandievarieties
01/24/2014 1:04 pm
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 Posted 01/24/2014  10:07 pm  Show Profile   Bookmark this reply Add ksammut to your friends list
I agree with jasper62 and Dasalo. I see a copper edge.
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 Posted 01/24/2014  10:58 pm  Show Profile   Bookmark this reply Add jack jeckel to your friends list

Quote:
Coins struck on over or underweight planchets aren't considered collectible unless they have at least a 10% variance from mint specifications.


Had to use the opportunity show these 2 again

I have clad halves ranging from 10.2g up to 11.8g.

I guess that would place them at the limits of the 10% rule albeit not all that commonly found.

Possible-2000-P-Massachusetts-Experimental-Planchet-Coin

Possible-2000-P-Massachusetts-Experimental-Planchet-Coin
Edited by jack jeckel
01/24/2014 10:59 pm
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 Posted 02/05/2014  9:38 pm  Show Profile   Bookmark this reply Add eSinger to your friends list
That is cool that ANACS would do that! I am glad I kept mine!
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