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Questions On 1972 Kennedy Half

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ClemCladhopper's Avatar
United States
18 Posts
 Posted 11/06/2017  09:26 am  Show Profile   Bookmark this reply Add ClemCladhopper to your friends list Get a Link to this Reply
What is considered a high value coin?
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coop's Avatar
United States
62064 Posts
 Posted 11/06/2017  12:31 pm  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
Coins worth more than $25. A bad cleaning can reduce the value as much as 90% if not done wrong.
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jbuck's Avatar
United States
189222 Posts
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ClemCladhopper's Avatar
United States
18 Posts
 Posted 11/10/2017  09:25 am  Show Profile   Bookmark this reply Add ClemCladhopper to your friends list Get a Link to this Reply
Okay, I weighed the half and it comes in a little light at 11.11g (11.43g was average) Could it be struck on a quarter planchete?
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Coppergold's Avatar
United States
939 Posts
 Posted 11/10/2017  1:01 pm  Show Profile   Bookmark this reply Add Coppergold to your friends list Get a Link to this Reply
No. This is what it would look like if it were struck on a quarter planchet.. Your coin is simply plated. The weight isn't that much to alarm me honestly. How many times did you weigh it? And did you press tare every time you re weighed it? Was the coin bigger than the platform you weigh it on? If the coin isn't dead center and isn't fully on the platform than it will weigh a lot less because the weight is falling off the edge of the scale. Did you weigh it on a flat hard surface? Honestly I would let this coin go...
Questions-On-1972-Kennedy-Half
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Crazyb0's Avatar
10197 Posts
 Posted 11/10/2017  1:15 pm  Show Profile   Bookmark this reply Add Crazyb0 to your friends list Get a Link to this Reply
OP mentioned a bluish tint, this indicates a different surface layer. Possibly a nickel/tin mix which may have a very slight magnetic attraction, or even a silver plated alloy of silver/tin or even a zinc mix(tin/zinc being key to blue). Plating causes very silight weight differences, in the hundredths of a gram, usually well within planchet Weight Tolerances. Most likely is a science"project", check YouTube for vids of DIY.
Edited by Crazyb0
11/10/2017 1:16 pm
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ClemCladhopper's Avatar
United States
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 Posted 11/10/2017  2:03 pm  Show Profile   Bookmark this reply Add ClemCladhopper to your friends list Get a Link to this Reply
Thanks for the replies. Coin roll hunting never stops amazing me with all the different things you see.
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coop's Avatar
United States
62064 Posts
 Posted 11/10/2017  6:12 pm  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
If the coin was stored in a soft 2X2 flip, then it might be contaminated with PVC. So that is another suggestion for a purple color on a coin.
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