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Stonen's Last 20 Posts

The "Ping" Of 1-Oz 2016 Australian Kangaroo Gold Coin
Stonen
New Member
11 Posts
Old Post Posted 11/11/2016  3:29 pm

http://www.youtube.com/watch?v=q61kQ-3rED8
Forum: Commemoratives and Non-Circulating Coinage (NCLT): Australia, New Zealand, & South Pacific (Oceania)
 
2016 1-Oz Gold Kangaroo Diameter
Stonen
New Member
11 Posts
Old Post Posted 11/11/2016  12:08 pm


They all the same, 2013 to 2016

Forum: Commemoratives and Non-Circulating Coinage (NCLT): Australia, New Zealand, & South Pacific (Oceania)
 
2016 1-Oz Gold Kangaroo Diameter
Stonen
New Member
11 Posts
Old Post Posted 11/11/2016  11:56 am
I wouldn't be worry about coins being too small or thin. Thinner the better.

^ heres one of mine. I have measured kangaroos from 2013-2016, they all the same:
Diameter 32.00-32.04 mm
Thickness 2.40-2.58 mm, this varies how you but the caliber on.

I tried to find difference from the years, but it seems to be impossible.
Forum: Commemoratives and Non-Circulating Coinage (NCLT): Australia, New Zealand, & South Pacific (Oceania)

2016 1-Oz Gold Kangaroo Diameter
Stonen
New Member
11 Posts
Old Post Posted 11/11/2016  11:38 am




Forum: Commemoratives and Non-Circulating Coinage (NCLT): Australia, New Zealand, & South Pacific (Oceania)
 
Counterfeit Perth Mint Gold Bullion Bars Exposed Pics Directly From China
Stonen
New Member
11 Posts
Old Post Posted 11/09/2016  1:09 pm

If XRF is not available, I trust in two things.

1. thickness of the bullion. Dead on with a good caliber.

2. UV pattern.

here's under 365 nm uv light. (cheap party light)

Forum: Numismatic Crime
 
Counterfeit Pamp Suisse Platinum Bars Exposed Pics Directly From China
Stonen
New Member
11 Posts
Old Post Posted 11/09/2016  10:50 am
The thickness should be 1,5 mm on a genuine bullion. Desent caliber is a must for everyone in gold and coin
business. Pamp certificate is about 1,2-1,3 mm. The bullion is really thin compared to it, if real.

Specific gravity of platinum is 21,45, so its even harder to counterfeit with tungsten, impossible actually.

http://www.pamp.com/mintedingots/PT00RI022S101
Forum: Numismatic Crime
 
Counterfeit Perth Mint Gold Bullion Bars Exposed Pics Directly From China
Stonen
New Member
11 Posts
Old Post Posted 11/07/2016  6:06 pm
Thank you Sir.

I looked into this more deeply.
The main thing for me is the thickness of the bar.
To keep in mind that the original Certicard is 1,25 mm thick (measured with a caliber), 1 oz Perth Mint bar is 1,71mm thick.
It's really thin bullion. If the fakes are doublethe density, about 3 mm its so hard to tell difference.
The thinner the better, everything else being ok and "halal".

Mine 50 g bar is about 2,4-2,5 mm thick.

Even a 100g bar is a "thin" being 4,5 mm.

Does anyone have a side picture of these fakes?
Assuming that they are too fat? Tungsten out of the count...
Forum: Numismatic Crime
 
Counterfeit Perth Mint Gold Bullion Bars Exposed Pics Directly From China
Stonen
New Member
11 Posts
Old Post Posted 11/07/2016  2:23 pm
For a comparison purpose, here's mine 100% genuine 2012 50 gram bar

Things to look into when bying pre 2013 bars from PM

-UV pattern under a uv-light
-serielnumber font, size, spacing
-thickness of the bar of course

The last picture is under a purple "party light" not
a genuine uv light, but the pattern is there.











Forum: Numismatic Crime
 
Counterfeit Perth Mint Gold Bullion Bars Exposed Pics Directly From China
Stonen
New Member
11 Posts
Old Post Posted 11/07/2016  1:47 pm
Scaringly good pieces. I've personally own Perth Mint coins and bars since 2012. Lately with the new Certicard serialnumber font and new package makes me feel scared. How can I trust anymore.
Without a UV pattern these fakes are getting so close to a genuine.
There should be a additional security feature, hologram or QR code like PAMPs Veriscan.

or is there a hidden feature on Perth Mints we don't know?
Forum: Numismatic Crime
 


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