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Cast 8 Reales ?

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MathieuMa's Avatar
France
1591 Posts
 Posted 04/15/2012  09:33 am  Show Profile   Bookmark this reply Add MathieuMa to your friends list Get a Link to this Reply
There was a discussion about this one on Facebook, everyone agreed that it was a cast of a striked coin - made to deceive collectors.
Using casting, it's way easier to copy the cast type IMHO.

I wonder who can bid on this with over 1000 ratings ... (nope, it's not our Swamperbob - and anyway it would be too expensive for what seems to be a quite modern fake)
Edited by MathieuMa
04/15/2012 09:35 am
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swamperbob's Avatar
United States
5362 Posts
 Posted 04/15/2012  12:16 pm  Show Profile   Bookmark this reply Add swamperbob to your friends list Get a Link to this Reply
I too have a strong opinion on this coin.

It really looks awful to me. That is because it is silver. In addition the doubling looks bogus as if it was on the die/mold. The details of the die work look wrong and the surfaces are poor. Other than that I think it is wonderful. I would buy this coin ONLY as a forgery even if all three TPG's blessed it simultaneously.

But I must disclose that personally I have never liked the SUD issues since I first saw one in 1957 and on the same day heard of people in my area that were still producing them brand new. They are simply too easy to fake.

Most non-silver white metal issues of this type can be eliminated as fakes based on SG or other non-destructive tests.

But because of the alloy variability discussed above the range of uncertainty is far wider than for say an 1805 Mo 8R. Is a coin that is 400 percent silver and 600 percent copper a fake? What percentage is correct? Were there Billion examples with an assay of 20% silver or less?

The silver copies that are about the correct weight and assay are even more dangerous to collectors, in my opinion, because people presume that silver was not used as a forgery material.

Some collectors accept silver coins of the correct assay and weight as real. But are they right?

Others like myself prefer to view all silver coins of this series with great suspicion until they are PROVEN REAL. But am I right to suspect all silver SUD coins as being fake?

Both positions may be incorrect.

However, I see my position as being more cautious and far less threatening to my pocket book. Also if I were to buy a silver SUD at melt (or a few $ more as a counterfeit) and if that coin were later proven to be "REAL" was I harmed?
Rest in Peace
biggfredd's Avatar
United States
9104 Posts
 Posted 04/15/2012  7:58 pm  Show Profile   Bookmark this reply Add biggfredd to your friends list Get a Link to this Reply

Quote:
Is a coin that is 400 percent silver and 600 percent copper a fake?

Absolutely, or at least rather large.


Quote:
What percentage is correct?

Prolly 40/60.
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MathieuMa's Avatar
France
1591 Posts
 Posted 04/16/2012  04:45 am  Show Profile   Bookmark this reply Add MathieuMa to your friends list Get a Link to this Reply
I've been discussing with the seller, here is his last reply (I elaborated again, and added some comments from swamperbob - including old forgeries) :

I got this coin at Fisher Auction 2011 Florida uncleimend deposit box,i got about 80 mexican coins it looked like a type collection was put together in the 70s,at that time those silver coins were about $20,why will they fake them.
The collector that left this collection in the deposit box ,was a specialist in mexican coins.
Non of his coins are fakes.
LOOK AT LOT # 118 IN THE CATALOG BELOW TO SEE THIS COIN
http://www.fisherauction.com/upcomi...l/?id=164889
Edited by MathieuMa
04/16/2012 04:59 am
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tokenmast's Avatar
United States
648 Posts
 Posted 04/17/2012  1:46 pm  Show Profile   Bookmark this reply Add tokenmast to your friends list Get a Link to this Reply
eeooowwhh.uuuhhh

sorry can't spell that

link is old not workingthat's OK

I mean in high school we cast aluminum ash trays that made more sense, without the fantasy doubling. The bow I do not understand

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MathieuMa's Avatar
France
1591 Posts
 Posted 04/17/2012  2:27 pm  Show Profile   Bookmark this reply Add MathieuMa to your friends list Get a Link to this Reply
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tokenmast's Avatar
United States
648 Posts
 Posted 04/17/2012  3:10 pm  Show Profile   Bookmark this reply Add tokenmast to your friends list Get a Link to this Reply
MathieuMa
Thank You
Lot of oror
anyway bids are up soooo...

but IMHO it is just not pretty
CC or no

swamperbob's position/outlook makes most sense (to me allwaysHappy if you haven't spent too much)

Yes biggfredd I have one of the extra high % 8Reales my Chinese supplier said it was extra big so I could see details better
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MathieuMa's Avatar
France
1591 Posts
 Posted 04/17/2012  4:35 pm  Show Profile   Bookmark this reply Add MathieuMa to your friends list Get a Link to this Reply
Actually as this seems to come from an old collection, I wouldn't bet on the usual chinese crap, but on some more local specialists.
Anyway, not the kind of stuff I would bid on.
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colonialjohn's Avatar
United States
1757 Posts
 Posted 04/17/2012  10:03 pm  Show Profile   Bookmark this reply Add colonialjohn to your friends list Get a Link to this Reply
Wrote this letter to Dan Sedwick recently:


Dan -


See the enclosed cast piece. Yes its cast but lets look at its EXACT composition:

Analysis was performed by a Ametek Spectro Midex ED-XRF Analyzer. See my company website at this website: http://www.edax.com. ED-XRF results is an intra-atomic phenomenon where, under incident X-Rays, inner shell electrons are ejected. The vacant electron state is then filled by an electron from an outer shell with the emission of X-Rays that have energies specific for the electron energy levels that are indicative of the nature of the metallic elements being sought after - as in this specimen you are viewing. In other words XRF machines work by producing an X-ray that excites atoms on the surface of the object, in order to stabilize themselves these atoms then release energy which can be detected by the machine. Each element produces energy with a different wavelength, thus allowing the machine to tell them apart. The machine also counts each instance of energy being released for each element, thereby producing a spectrum with peaks whose size are dependant on the quantity of each element present. This can then be converted into percentage values for the composition of the object.



XRF Analysis yielded: Silver (81.6%), Copper (17.14%), Iron (0.35%), Lead (0.3%), Platinum (0.09%), Nickel (0.02%), Gold (0.07%), Zinc (0.06%), Bismuth (0.04%), Arsenic (0.04%), Indium (0.03%), Mercury (0.02%), Yttrium (0.02%) & Iridium (0.006%).



This is what is called debased silver with the usual substituted alloy for silver being copper or zinc. I do not consider this a contemporary counterfeit of the period. To me this smells like an emergency money specimen being a Klippe and when and where and why these Klippe's were struck. Note the significant amounts of trace elements including gold and indium which are diagnostic elements in early silver in trace amounts. See Paul Craddock's work at the British Museum with XRF.



Simply put ... at times KLIPPES were cast with lower silver amounts or possibly at regal level amounts of silver. I have not analyzed silver struck Klippe's with XRF analysis before so I do not know their normal silver levels. The silver alloy analyzed here is homogenous with other silver alloys from this period for 8 Reales in terms of major/minor constituents.



John Lorenzo

Numismatist

United States

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colonialjohn's Avatar
United States
1757 Posts
 Posted 04/17/2012  10:16 pm  Show Profile   Bookmark this reply Add colonialjohn to your friends list Get a Link to this Reply
Bob I sent you & Gord photos of this 1733 cast Klippe in question. As we discussed on another issue with the new Craddock book on Scientific Analyses can't be a modern fake not with gold & indium in trace quantities. Possibly melted silver 8 Rs and then cast. Same seller for the record and advertised as study pieces and cast. Same dilemma as with these countermark coins in this post. Even if T/Mast was to send me for XRF analysis and we again get gold & indium? Now what? Without documented countermarks like the Chihuahua issues ... how can we prove original? Dan says I better duck after posting this ... <BG>. Pictured in Pradeau (1938). Plate IX - No.4. Same pieces. Holed. Pradeau gives some good arguments why to reject these casts. Sedwick says they appeared only recently say in the late 1800's/early 1900's?
Edited by colonialjohn
04/17/2012 10:22 pm
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swamperbob's Avatar
United States
5362 Posts
 Posted 04/17/2012  10:23 pm  Show Profile   Bookmark this reply Add swamperbob to your friends list Get a Link to this Reply
John - To me it looks like a simple modern counterfeit. Someplace, I have some rather similar cast Klippe coins that came from the Virgil Hancock estate. Perhaps a test of these coins would confirm that in the 1970's that forgers were using old silver to fabricate Numismatic Forgeries. I will send them to you along with the portrait Modern Counterfeits you requested - if I can locate them in the next few days.
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colonialjohn's Avatar
United States
1757 Posts
 Posted 04/17/2012  10:34 pm  Show Profile   Bookmark this reply Add colonialjohn to your friends list Get a Link to this Reply
If you have a Chihuahua issue that woud be interesting. It seems so from Pradeau on page 78. He also mentions castings in gold with the lettering at the side of the shield changed to read 8E.
Not bad for a guy writing in the 1930's ...
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swamperbob's Avatar
United States
5362 Posts
 Posted 04/17/2012  10:48 pm  Show Profile   Bookmark this reply Add swamperbob to your friends list Get a Link to this Reply
I do have some of the Chihuahua casts and a few silver suds that might be interesting as well. They are likely in the bank but I will hunt them out.
Rest in Peace
biggfredd's Avatar
United States
9104 Posts
 Posted 04/17/2012  11:44 pm  Show Profile   Bookmark this reply Add biggfredd to your friends list Get a Link to this Reply
John-

Does the xray test into the coin, or just the surface (plating)?
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colonialjohn's Avatar
United States
1757 Posts
 Posted 04/18/2012  12:17 am  Show Profile   Bookmark this reply Add colonialjohn to your friends list Get a Link to this Reply
The extreme top. The top 10 micrometers. I am aware of the silver surface enrichment process as investigated by L. Beck in 2004. But its irrelevant here since these are not typical modern casts but probably very early 20thC or late 19thC in my opinion based on the assay and very well made by melting down legitimate 8R and then placing this fluid into a cast mold ... so it seems from Pradeau ... since he has these exact coins plated in his 1938 work ... so these seem at least this old. But I am not an expert in Mexican Coins. My only expertise prior to the CC8R's was the Kleeberg Counterfeit 2 Reales. One thing is for certain when people use the word cast ... it can mean different things other than just a "bad" word. I always appreciated casts from the English halfpence & farthings contemporaries imported into the US colonies prior to the U.S. Mint starting in 1792. Anyway ... these are probably modern as defined above ... but I still have doubts ... I only own two cast Klippes (1733 & 1734) ... the other read 53% silver ... again a debased silver alloy type with copper high and gold and indium in trace. I am purchasing a third ... just for curiosity ... I am asking myself ... GEE! ... these guys are GOOD! They sure went to a lot of trouble adding copper and making these assays read like 1700/1800 pieces - EXACTLY. Personally ... I have never seen casts ... SO WELL MADE ... to these early 8R's. It's these minor constituents that are bothering me. If they just melted 8R's ... would not surface enrichment process yield Ag values in the 95-98% range with these casts as is the case when I analyze the regal 8R's at 90% Ag. Fred ... in my opinion this is unexplored territory ... how early did numismatists first spot these cast Klippes? Pradeau is correct in his argument - no documentation of casts. Production levels were strong with the struck issues and their population was higher than the previous two years. Why bother to cast? Striking is less laborious and easier. The counterfeiters simply did not have any dies to work with so they casted. Perhaps more will be learned as Bob sends me more Moderns/Fakes.
Edited by colonialjohn
04/18/2012 12:25 am
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