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Interesting Afternoon With The XRF

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 Posted 10/21/2016  5:12 pm Show Profile   Check SPP-Ottawa's eBay Listings Bookmark this topic Add SPP-Ottawa to your friends list Get a Link to this Message Number of Subscribers
Now.... where are my scissors...

Interesting-Afternoon-With-The-XRF
"Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search." -- J. Robert Oppenheimer

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 Posted 10/21/2016  5:27 pm  Show Profile   Bookmark this reply Add john100 to your friends list Get a Link to this Reply
That would be interesting!
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 Posted 10/21/2016  5:31 pm  Show Profile   Bookmark this reply Add M_d_in_guy to your friends list Get a Link to this Reply
So, the XRF revealed the truth did it.................lol.
Perhaps on their way to the junk bin or maybe the other road on to PCGS lol.
Nothing like sitting on the edge of the seat..............

Drum roll please..............
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 Posted 10/21/2016  5:52 pm  Show Profile   Bookmark this reply Add DBM to your friends list Get a Link to this Reply
"Dipping" is not considered cleaning...
-from PCGS website
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 Posted 10/21/2016  6:12 pm  Show Profile   Bookmark this reply Add Smallcentguy to your friends list Get a Link to this Reply
If I owned those coins I don't think I wold let them near SPP's XRF. Something tells me the owner will have a hard time selling them "as labeled" in good conscience afterwards.......
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 Posted 10/21/2016  7:08 pm  Show Profile   Check SPP-Ottawa's eBay Listings Bookmark this reply Add SPP-Ottawa to your friends list Get a Link to this Reply
No fears - both were indeed brass. They were previously tested before ICCS certified, but the owner was nice enough to let me cut them out and test on my machine for sake of data consistency with other examples I have tested...

Now, you have to be patient for a forthcoming article on the 1859 brass cent.
"Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search." -- J. Robert Oppenheimer

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 Posted 10/21/2016  7:25 pm  Show Profile   Bookmark this reply Add okiecoiner to your friends list Get a Link to this Reply
And here I sent over 500 1859's to SPP for XRF and to include the findings for an article a few years ago on the 1859 brass cent. Needless to say not a single one turned up brass, but there definitely were some different alloys/mixtures across test population. Most, though, were pretty closely packed together , near where the published composition should be.
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 Posted 10/21/2016  9:48 pm  Show Profile   Bookmark this reply Add Alan to your friends list Get a Link to this Reply
What does a G3 brass fetch if you don't mind a person asking?
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 Posted 10/21/2016  9:52 pm  Show Profile   Check thedollarman's eBay Listings Bookmark this reply Add thedollarman to your friends list Get a Link to this Reply
@Alan here is the previous sale of the AG-3 posted by SPP-Ottawa http://www.icollector.com/1859-One-...ss_i24982534

edited to add the G-4 example's previous sale as well- http://www.icollector.com/1859-Bras...nt_i24441015
Feel free to call me Will.
Edited by thedollarman
10/21/2016 11:18 pm
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 Posted 10/22/2016  01:34 am  Show Profile   Bookmark this reply Add bosox to your friends list Get a Link to this Reply
Times have changed. Several years ago, I bought my F-15 for about the AG-3 price.
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 Posted 10/26/2016  08:26 am  Show Profile   Check SPP-Ottawa's eBay Listings Bookmark this reply Add SPP-Ottawa to your friends list Get a Link to this Reply
Anyone who is good with Haxby numbers want to take a shot at identifying these two coins? thedollarman has provided the links to good photos.

I have photos of about a dozen other 1859 brass coins, perhaps someone can help me with those in terms of which dies struck those coins (like Doug, Gene or Randy)? Send me a PM...
"Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search." -- J. Robert Oppenheimer

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 Posted 10/26/2016  08:44 am  Show Profile   Bookmark this reply Add okiecoiner to your friends list Get a Link to this Reply
Every one that I've seen has a very narrow vine break at leaf 7 before the hub broke off more. This makes it very early in the coinage year and striking cycle .. maybe simultaneously with the 1858's and 9/8's. Do your "dozen or so" brass cent photos hold up with very narrow gaps, SPP?
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 Posted 10/26/2016  12:20 pm  Show Profile   Check SPP-Ottawa's eBay Listings Bookmark this reply Add SPP-Ottawa to your friends list Get a Link to this Reply
The AG-3 looks to be a larger gap (middle stage perhaps)... I just want to see if different dies struck those coins...
"Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search." -- J. Robert Oppenheimer

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 Posted 10/26/2016  1:29 pm  Show Profile   Bookmark this reply Add okiecoiner to your friends list Get a Link to this Reply
Well, I'm sure that different dies DID strike the coins. It was whatever was in the planchet chute/bin that fed the presses, regardless what working dies were in place. Improper mix or settling of the alloy in the crucibles/pots before being poured into the ingots was where the brass came from. Once the ingots were flattened into sheets and then planchets cut from them resulted into portions of the sheets being bronze and small sections being brass because the ingots weren't consistent all the way through.
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 Posted 10/26/2016  1:51 pm  Show Profile   Bookmark this reply Add torgemco to your friends list Get a Link to this Reply
Great Thread
thanks
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 Posted 10/26/2016  2:03 pm  Show Profile   Check SPP-Ottawa's eBay Listings Bookmark this reply Add SPP-Ottawa to your friends list Get a Link to this Reply

Quote:
Once the ingots were flattened into sheets and then planchets cut from them resulted into portions of the sheets being bronze and small sections being brass because the ingots weren't consistent all the way through.


By that logic, should there not be some partial brass coins, or a transition from bronze to brass?
"Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search." -- J. Robert Oppenheimer

Content of this post is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. See: http://creativecommons.org/licenses...0/deed.en_US

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