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Lincolns Question

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desertgem's Avatar
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860 Posts
 Posted 11/08/2008  6:48 pm  Show Profile   Bookmark this reply Add desertgem to your friends list Get a Link to this Reply

Thad, here is an academic article on doing such using SEM, sorry but they used a quarter, but easily done for any coin once set up. You might write the author and see if they did any other coins. Also I remember a Thesis by someone on computer coin grading where it was hypothesized that such relative measurements could be used to determine strike and wear, but I forget where I read it online.

http://arxiv.org/pdf/cond-mat/9802139.pdf

Jim
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BadThad's Avatar
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19987 Posts
 Posted 11/09/2008  1:15 pm  Show Profile   Bookmark this reply Add BadThad to your friends list Get a Link to this Reply

Quote:
Thad

if you know any one with CNC software , they maybe able to map a coin ,my suggestion would be several coins from each grade point to get an over all difference of how wear actually affects the die .


Hummm...actually, a friend of mine has a CNC machine. I'll ask him about it. Thanks
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BadThad's Avatar
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19987 Posts
 Posted 11/09/2008  1:16 pm  Show Profile   Bookmark this reply Add BadThad to your friends list Get a Link to this Reply
desertgem - Excellent paper! Thanks for the link!
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 Posted 11/09/2008  1:27 pm  Show Profile   Bookmark this reply Add coinsrus to your friends list Get a Link to this Reply
Just out of curiosity BadThad which shop do you go to here in Cincinnati?
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BadThad's Avatar
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19987 Posts
 Posted 11/09/2008  6:29 pm  Show Profile   Bookmark this reply Add BadThad to your friends list Get a Link to this Reply

Quote:
Just out of curiosity BadThad which shop do you go to here in Cincinnati?


You're in Cincy? COOL! I like Hyde Park Rare Coin. If you go there and see Clay, tell him Thad sent you. I also like their Fairfield store, but it's a long way from me. We also have the monthly show, last Sunday every of every month, it's a nice little show.
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