arvin11
Joined: 31 Mar 2017
Posts: 376
Posted: 2 Jun 2018, 19:37
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Posted: 2 Jun 2018, 19:37
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coin collector.....
Cerulean
Joined: 1 Nov 2010
Posts: 1873
Posted: 2 Jun 2018, 22:03
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Posted: 2 Jun 2018, 22:03
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This would be a great opportunity to weigh the core separate from the ring.
MIMAEL
Joined: 25 Dec 2016
Posts: 1910
Posted: 3 Jun 2018, 07:34
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Posted: 3 Jun 2018, 07:34
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Hi Arvinder
A nice day to Kolkata.
The center of the coin does not look, it is pressed by pressure 120 ton , it is usually violently separated.
Put your article in the translator.

https://www.cnb.cz/cs/o_cnb/blog_cnb/prispevky/moravec_20140321.html
Ahoj Ivan
ALLRED1950
Joined: 2 Jul 2012
Posts: 4976
Posted: 3 Jun 2018, 10:41
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Posted: 3 Jun 2018, 10:41
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Interesting , here is an outer ring from a Canadian 2 dollar coin from1996. wt. 4.95 g.

and the markings inside the ring
It is, what it is, or is it.
CassTaylor
Joined: 30 May 2014
Posts: 8551
Posted: 3 Jun 2018, 11:02
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Posted: 3 Jun 2018, 11:02
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I heard from a friend in Singapore a while back that when they issued the new bimetallic 1 Dollar coins:
https://en.numista.com/catalogue/pieces42898.html
There was a rumour going around that the coins were so poorly made that the inner part would fall out of the outer ring, probably started by pictures of coins that had been defaced in such a manner.