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For the love of copper
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2,473 posts in this topic

11 hours ago, dean1345 said:

Gorgeous IHC’s.......

very nice  Indians. I am putting together a AU58 CAC set and finding it harder to do than an UNC. set.

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On 7/9/2018 at 8:17 AM, dean1345 said:

I bet so and would love to see some of your collection.

for some reason my virus. malware blocker will not let me get bacl into photo bucket If I can work out the problem I will post. need 8 more

 

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11 hours ago, Yarm said:

This pattern was purchased as J-165b (bronze) but metallurgical analysis ultimately determined that it was copper.

 

Project.thumb.jpg.a3829dc44146c5de4c5efec169b5d6d2.jpg

Hold on. You can't post something that interesting and not give more details.

 When and where was it purchased? What made you think it was not bronze? When did you have it tested, and what type of test was done? ( I know nothing about metallurgical analysis.) Has it been re-attributed?

Any other details you might wish to share would be welcome, also.

Inquiring minds want to know.:nyah:

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I believe I purchased this pattern from a Stack's auction in 1990. The auction was a hodgepodge of primarily raw coins in the middle of which was this piece attributed as J-165b and graded PR66RB by NGC.  In very high relief, only a few known, one in the Smithsonian and graded about as high as they went back then so I was pleased when it was overlooked.

When I retired I couldn't collect such US patterns anymore so in 2008 I offered the coin to a pattern specialist who was researching 1854 and 1855 flying eagles for metal composition, die characteristics and other features. I had crossed it to PCGS in the meantime. He told me later that SEM-EDX testing indicated it was copper rather than bronze. Apparently, he had it reholdered with PCGS as J-165a (copper), PR66RB where it resides today.

As an aside, the buyer's premium for that sale was 10%!

Yarm

13813499_1069298_2200.jpg

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My copy of Judd is a ninth edition (2005), so the numbers might have changed, but it lists both 165a and 165b as R8 (only 2-3 known). That is seriously impressive. I bet the specialist who you sold it to was thrilled.

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How are yall, I got a few coins I got questions about on if Im right on identifying,  can yall help? Here is the first one... 

1982 D small date that weighs 3.10 so its copper. Both of these are small date. i think,  but one weighs 2.5 the other 3.10 copper. i hope im right, not sure. CM180822-205338014.thumb.jpg.24e3bdc2530165fd11f428a74b2bd9f4.jpg

CM180822-205846015.jpg

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The top one is a large date. Note the difference in the loops of the 8 between the two. On the small date the bottom loop is much bigger than the top. On a large date they are about the same size. 

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