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1737 Mexico 8 Reales. A Contemporary Counterfeit?

 
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Author Previous TopicReplies: 9 / Views: 475Next Topic  
New Member

United States
26 Posts
 Posted 08/03/2021  7:11 pm Show Profile   Bookmark this topic Add hjian to your friends list Get a Link to this Message
Found another counterfeit 8 reales.
This one is obvious but the patina looks very old.

This coin only weights 25.5g with small diameter 38mm. SG is only 10.26g/cm3 (containing only 87% silver). This could be due to sea salvage. But what given away is the coin edge. There are two discontinuity 180 degree part. But the edge pattern is reversed on the opposite side of the coin.

Is this a contemporary counterfeit coin? What is the motivation? Or this is something made recently to fool collectors.



Edited by hjian
08/03/2021 7:33 pm
Pillar of the Community
United States
5225 Posts
 Posted 08/03/2021  8:09 pm  Show Profile   Bookmark this reply Add swamperbob to your friends list Get a Link to this Reply
In my opinion it is more than likely a Numismatic Forgery.

Have you checked the specific gravity? Done an XRF to detect gold?
My book on Counterfeit Portrait 8Rs is available from Amazon https://www.amazon.com/Counterfeit-.../1500497177/ or from me directly if you want it signed.
New Member
United States
26 Posts
 Posted 08/03/2021  8:53 pm  Show Profile   Bookmark this reply Add hjian to your friends list Get a Link to this Reply
Swamperbob:
Yes, SG is only 10.26g/cm3.
I didn't bother with XRF test unless you think it is worth to do it. I will probably return it to the seller.
Pillar of the Community
United States
5225 Posts
 Posted 08/03/2021  8:58 pm  Show Profile   Bookmark this reply Add swamperbob to your friends list Get a Link to this Reply
I would return it and wait for a better looking example.
My book on Counterfeit Portrait 8Rs is available from Amazon https://www.amazon.com/Counterfeit-.../1500497177/ or from me directly if you want it signed.
New Member
United States
26 Posts
 Posted 08/04/2021  9:05 pm  Show Profile   Bookmark this reply Add hjian to your friends list Get a Link to this Reply
Thank You!
Pillar of the Community
Hong Kong
1248 Posts
 Posted 10/06/2021  04:26 am  Show Profile   Bookmark this reply Add wonghinghi to your friends list Get a Link to this Reply
a sea salvage piece, is real to me
New Member
United States
26 Posts
 Posted 10/06/2021  10:37 am  Show Profile   Bookmark this reply Add hjian to your friends list Get a Link to this Reply
Sea salvage won't change the coin edge. The edge pattern is reversed, which is usually seen in counterfeit coins.
Pillar of the Community
Hong Kong
1248 Posts
 Posted 10/06/2021  10:42 pm  Show Profile   Bookmark this reply Add wonghinghi to your friends list Get a Link to this Reply
The edge pattern is reversed, which is usually seen in counterfeit coins.


Not so agreed.
Pillar of the Community
United States
647 Posts
 Posted 10/07/2021  12:34 am  Show Profile   Bookmark this reply Add Westwood Arms to your friends list Get a Link to this Reply
At 25 +/- gm it is a fake. Very soft details and PLUS ULTRA is too strong.
New Member
United States
26 Posts
 Posted 10/07/2021  01:36 am  Show Profile   Bookmark this reply Add hjian to your friends list Get a Link to this Reply
This post has some information. Many 8 reales with reversed edge design were stuck on debased planchets. ((((((((())))))))
http://goccf.com/t/367996

For the reversed edge to happen, one edge die would have to be rotated 180 degree against the other edge die. Would this mistake happen at the mint?
Edited by hjian
10/07/2021 11:02 am
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