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- From rg5turc@aol.com Thu May 16 16:48:04 2002
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Date: Thu, 16 May 2002 23:48:02 -0000
To: colonial-coins@yahoogroups.com
Subject: Re: [Colonial Numismatics] Niton Test V14-84A & 1753 G-II 1/2d
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From: "maud_dib101" <rg5turc@aol.com>
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Hi Leo,
Not sure what the analysis of the (8) small heads might be, maybe
that you have way to many 1.1-A'a on hand, only kidding! In
preparation for my second meeting with Niton I plan on having as much
detailed information logged on data sheets for every coin to be
tested, what results or conclusions will or can be drawn from that,
well we will see. It all may be nothing more than an affirmation
that a struck copper coin is mostly pure copper and that a cast or
struck coin on a cast blank has a metal composition of various metals.
The one thing different this time will be that a substantial number
of coins will be tested and any trend that develops will be left open
to discussion. I've also made arrangements with Volker from Niton
that a spreadsheet will be used with prior data already established
for each coin such as weight and diameter measurements. I've also
asked for any other suggestions in setting the format which will
allow time to alter the spreadsheet before June 17 and June 21st.
the other difference is that the speadsheet will be on my Dell Laptop
and I will be able to email the results easily to all who want a copy
of the results as well as download the data ina PDF file to the group
site.
Ray T.
--- In colonial-coins@y..., leo.j.shane@h... wrote:
> Ray T.
> I just happen to have 8 (don't ask) 1787 Ct Miller 1.1-A pieces. I
think
> that I can make the assumption that these were all minted at the
same place
> over a short peroid of time. I wonder what the analysis of these 8
coins
> might show us. If we do have the analyzer at C4, I will bring them
a long.
> In addition to having different varieties to test, does it make
sense to
> have a large sampling of a few identified varities to see what this
tells
> us?
>
> Leo
>
>
> Leo Shane
> Honeywell Industrial Process Controls
> Market Development
> 215 641 3504
> 215 641 3599 Fax
> Leo.J.Shane@h...
>
>
> -----Original Message-----
> From: rg5turc@a... [mailto:rg5turc@a...]
> Sent: Wednesday, May 15, 2002 6:57 PM
> To: colonial-coins@y...
> Subject: [Colonial Numismatics] Niton Test V14-84A & 1753 G-II 1/2d
>
>
>
>
> Hi All,
>
> Before I start tonight I once agian wish to point out that since
these tests
> were performed on such a limited number of coins that I for one am
not ready
> to draw any conclusions from such a limited amount of data. I do
feel that
> with some of these coins the testing raises possibilities and
questions as
> in the V14-84A Machins I am posting tonight. The test readings on
the
> V14-84A are as follows: Cu (copper) 91.97%, Pb (lead) .94%, Zn
(zinc) 4.29%
> and Sn (tin) 2.31%. Interesting in that the content of material of
this
> coin is that as one would expect to find in a cast coin or raises
the
> possibility that this coin is an example of a coin struck on a cast
blank.
> I also have the results from a 1753 G-II cast coin: Cu 83.3%, Pb
3.72%, Zn
> 10.1%, Sn 1.34% and very interesting Fe (iron) 1.25% which has a
much higher
> melting point then that of copper.
>
> I would like to suggest and look forward to hearing comments back
but I
> believe it would be interesting to have this analyzer available at
C-4 this
> year and that as many coins as possible be measured and weighed to
see if
> any significant conclusions (opinions) might come from a broader
data base.
> I will post the pic of the 1752 G-II cast coin once I recieve
permission
> from the owner.
>
> Ray T.
>
>
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